United Airlines Teams Up with Southwest, Allegiant and Other Raise Domestic Air Fares in Q2 2026 as Passenger Yields

United Airlines, Southwest, Allegiant and other airlines raised domestic air fares in Q2 2026, while passenger yields increased. Together, carriers highlighted a broader rise in US travel costs.

United Airlines teamed up with Southwest, Allegiant and other US carriers in reporting higher domestic air fares in Q2 2026. Meanwhile, passenger yields increased across several airlines. As demand remained resilient, carriers managed capacity and pricing. Together, these trends show how domestic travel costs continued rising across the US market.

Domestic air travel became more expensive across several major US airlines during the second quarter of 2026, although the scale of the increase varied significantly between carriers and routes.

The latest Bureau of Transportation Statistics data shows the average US domestic itinerary fare reached $445 in Q2 2026, up 2.0% from the inflation-adjusted Q1 figure and 11.2% from Q2 2025. Airline financial results provide additional evidence of higher pricing, with carriers including United Airlines, Southwest Airlines, JetBlue Airways, American Airlines, Delta Air Lines, Alaska Airlines and Allegiant reporting increases in fares or passenger-yield measures.

However, these airline figures are not directly interchangeable. Some carriers report average fares, while others disclose yield, PRASM or RASM, which can also be influenced by passenger mix, route length, capacity and ancillary revenue.

US Domestic Air Fares Rise 2% in Q2 2026 as Average Ticket Price Reaches $445

The cost of flying within the United States increased during the second quarter of 2026, with the average domestic air fare reaching $445, according to new data from the US Department of Transportation’s Bureau of Transportation Statistics (BTS).

The figure represents a 2.0% increase from the inflation-adjusted average fare of $436 recorded during the first quarter of 2026. At the same time, the second-quarter fare was 11.2% higher than the corresponding fare in the second quarter of 2025, indicating a significant year-on-year increase in the cost of domestic air travel.

The BTS figures provide a broad view of ticket prices paid by passengers across the US domestic aviation market. However, the agency has also cautioned that the methodology changed from the third quarter of 2025, making comparisons with earlier periods subject to an important sampling distinction.

Why did US domestic air fares rise in Q2 2026?

The average US domestic air fare reached $445 in the second quarter of 2026, rising from $436 in the first quarter after inflation adjustment.

The increase places fares well above the recent low recorded in the third quarter of 2025, when the inflation-adjusted average was $381. The Q2 2026 figure is therefore 16.7% above that recent low.

However, the latest fare remains below the inflation-adjusted peaks recorded during earlier periods. BTS data shows that the highest second-quarter fare was $662 in 1999, while the highest fare for any quarter was $673 in the first quarter of 1999.

The latest figure is consequently 32.7% below the highest second-quarter fare and 33.8% below the highest quarterly fare after inflation adjustment.

This distinction matters because today’s $445 average fare does not represent the highest real cost of domestic air travel in the historical BTS series. Instead, the latest data shows that fares have increased substantially from their pandemic-era lows while remaining below the inflation-adjusted levels seen around the turn of the century.

How much did fares increase compared with Q2 2025?

The second quarter of 2026 recorded an 11.2% increase compared with the second quarter of 2025, according to BTS.

That year-on-year movement is particularly significant for travellers because it places the latest fare considerably above the previous year’s comparable quarter. The increase also comes despite the fact that the inflation-adjusted fare remains below historical highs.

For consumers planning domestic journeys, the data indicates that the average cost of a ticket has moved higher over the past year. Actual prices paid by individual travellers, however, can differ considerably depending on the route, booking period, airline, travel dates, cabin type and other factors.

The BTS average should therefore be treated as a nationwide market indicator rather than a prediction of what a particular passenger will pay for a specific journey.

What does the $445 average fare include?

BTS defines the reported itinerary fare as a round-trip fare, while also including one-way tickets when no return journey is purchased.

The calculation includes fees and charges levied by an airline that are required for a passenger to board the aircraft. It also includes additional taxes and fees charged by outside entities at the time of ticket purchase.

However, the figure does not include optional services.

That means passengers should not interpret the $445 average as the complete potential cost of every domestic journey. Optional charges such as checked baggage, seat upgrades and fees for selecting an assigned seat are excluded from the BTS calculation.

This distinction is increasingly relevant to consumers because airlines can generate revenue from services beyond the basic ticket price.

Are passengers buying more one-way or return tickets?

The BTS breakdown shows that 45% of the reported itineraries were one-way tickets, with an average fare of $312.

The remaining 55% were round-trip tickets, with an average fare of $549.

The difference demonstrates how the overall $445 average is influenced by the mix of journey types included in the dataset. A traveller purchasing a one-way itinerary and another purchasing a return ticket can therefore face substantially different fares.

The figures also reinforce why the national average should not be interpreted as a standard price for a particular type of journey. Instead, it combines different itinerary structures across the domestic market.

Why has BTS changed its air fare data collection?

One of the most important details in the latest release is a change in BTS data collection.

Beginning in the third quarter of 2025, the US Department of Transportation moved to the Origin-Destination Survey of Airline Passengers, known as the OD40 programme. Under the previous system, ticket sampling was conducted on a 10% basis.

From 1 July 2025, the sampling level changed to 40% of tickets from US air carriers operating scheduled passenger services.

As a result, BTS states that domestic average fares from the third quarter of 2025 onwards are based on the 40% sampling methodology. Earlier fares continue to be based on the 10% ticket sampling system.

This means that readers comparing Q2 2026 with periods before Q3 2025 should take the methodological change into account. The agency has highlighted the transition specifically so users do not overlook the difference when analysing long-term fare trends.

How does the inflation-adjusted fare compare with the unadjusted fare?

The second quarter of 2026 produced an important contrast between the inflation-adjusted and unadjusted measures.

The inflation-adjusted average fare was $445. In the unadjusted series, the fare was also $445, but the year-to-year interpretation is different because the unadjusted measure does not remove the effect of inflation.

BTS reports that the unadjusted Q2 2026 fare increased 4.1% from $428 in Q1 2026. It was also the highest unadjusted second-quarter fare on record and the highest unadjusted quarterly fare recorded in the series.

The unadjusted fare was 50.0% higher than the $297 recorded in the first quarter of 1995. Over the same period, the consumer price increase was 119.5%.

This comparison illustrates why nominal and inflation-adjusted figures need to be considered separately when assessing the long-term affordability of air travel.

Which US airports recorded the highest average fares?

The BTS airport analysis shows differences between airport groups based on the number of originating domestic passengers.

Airports with more than 2 million originating passengers recorded the highest average fare among the reported airport groups, at $453.

By comparison, airports with between 500,000 and 999,999 originating passengers recorded the lowest average fare among the listed groups, at $438.

The BTS analysis also includes the Top 100 Airports and an All Airports category.

The difference between $453 and $438 may appear relatively modest, but it demonstrates that average fares vary according to airport group and passenger volumes. Airport-level averages can also reflect differences in route networks, competition, travel patterns and the mix of destinations served.

Passengers should therefore avoid assuming that the national $445 average applies uniformly across every US airport.

How do current fares compare with pandemic-era levels?

The latest data shows a clear recovery from the unusually low fares recorded during the pandemic period.

The inflation-adjusted Q2 2026 fare of $445 was 41.5% above the previous all-time low of $315 recorded in Q3 2020.

It was also 32.2% above the previous second-quarter low of $337 recorded in Q2 2020.

The comparison highlights how dramatically domestic air fare conditions changed after the sharp disruption to global aviation during the pandemic.

At the same time, the latest figure remains 1.8% below the more recent inflation-adjusted high of $453 recorded in Q2 2022.

The pattern suggests that fares have remained considerably above their deepest pandemic-era levels, while the latest quarter has not surpassed the inflation-adjusted high recorded in 2022.

How important are passenger fares to US airlines?

Passenger fares remain a major source of revenue for US airlines, although their proportion of total operating revenue has declined over the longer term.

During the first six months of 2026, US passenger airlines collected 72.5% of their total operating revenue from passenger fares, according to BTS.

The airlines generated $101.5 billion in total operating revenue during that period.

The 72.5% share represents a substantial change from 1990, when passenger fares accounted for 88.5% of total operating revenue.

The decline reflects the growing contribution of additional revenue streams across the airline industry. BTS specifically notes increasing revenue from passenger fees and other sources in recent years.

This development is important when considering the headline fare because the ticket price does not necessarily represent every charge associated with a passenger’s journey.

What does the latest BTS data mean for domestic travel?

The Q2 2026 data presents a mixed picture for the US domestic travel market.

On one hand, the average fare has increased 2.0% from the previous quarter and 11.2% from Q2 2025. The unadjusted fare has also reached its highest recorded quarterly level.

On the other hand, the inflation-adjusted $445 fare remains substantially below the historical highs recorded in the late 1990s and is slightly below the recent high recorded in Q2 2022.

The figures therefore point to a domestic aviation market in which fares have risen from pandemic-era lows but have not returned to the inflation-adjusted peaks of previous decades.

For travellers, the practical impact will vary considerably. The national average does not account for individual route economics, airline competition, booking timing, travel dates or optional charges.

What should travellers take from the Q2 2026 fare figures?

The latest BTS release provides a useful benchmark for understanding the direction of US domestic airfare.

The $445 average shows that domestic ticket prices moved higher during Q2 2026. The 2.0% quarterly increase and 11.2% year-on-year increase demonstrate that the market has experienced meaningful fare growth compared with both Q1 2026 and Q2 2025.

However, the historical data provides important context. Inflation-adjusted fares remain well below the highest levels recorded in 1999, while the current fare is significantly above the lows observed during 2020.

The change to the OD40 collection system from Q3 2025 must also be considered when comparing recent figures with older BTS data.

For the travel industry, the release offers a broad indicator of domestic airfare conditions, while for passengers it provides context for understanding how today’s ticket prices compare with recent and historical market levels.

United Airlines reports a 12.8% rise in domestic average fare

United Airlines provides one of the clearest carrier-level indicators of the changing domestic airfare environment.

The airline reported that its average domestic fare increased 12.8% year on year in Q2 2026. Domestic yield increased 13.0%, while domestic passenger revenue rose 20.3% to $9.506 billion.

United also increased domestic capacity by 7.2%, while passenger numbers increased 6.6%. The combination of higher passenger revenue, increased average fares and higher yield indicates that pricing remained strong even as the airline added capacity.

For the wider US aviation market, United’s figures are significant because they provide a direct comparison with the national BTS fare trend.

Southwest Airlines records an 18.9% increase

Southwest Airlines reported one of the most notable increases among major US carriers.

The airline’s average passenger fare reached $225.76 in Q2 2026, compared with $189.90 in the same quarter of 2025. That represents an 18.9% year-on-year increase.

Passenger revenue yield increased 13.6%, while revenue per available seat mile rose 13.8%. Passenger revenue increased 16.9%.

Southwest’s pricing results also reflect changes in its fare structure and passenger product mix. The airline said a higher proportion of customers purchased higher fare categories, alongside the introduction of additional products.

Consequently, the increase should not be interpreted solely as a uniform price rise across every Southwest route.

JetBlue sees average fares rise 8.6%

JetBlue Airways also reported a clear increase in its average passenger fare.

The carrier’s average fare rose to $237.38 in Q2 2026, compared with $218.52 during Q2 2025. The increase was approximately 8.6%.

JetBlue’s yield per passenger mile increased 9.6%, while passenger revenue per available seat mile increased 10.6%.

The airline also reported a 14.5% increase in operating revenue, reaching approximately $2.7 billion, while system capacity grew 3.2%.

The results indicate that JetBlue generated significantly more revenue while expanding capacity at a relatively moderate pace.

Allegiant reports a 15.1% increase in average total fare

Allegiant Air recorded another substantial increase.

Its average total fare climbed 15.1% to $158.01 during Q2 2026, compared with $137.23 a year earlier. Its scheduled-service average fare increased even more sharply, reaching $78.99, while the scheduled-service base fare rose 39.9%.

Allegiant simultaneously reduced capacity by 6.8%.

The carrier reported record standalone revenue of $776.2 million, up 16.1% year on year, while total revenue per available seat mile increased 24.6%.

The combination demonstrates how pricing can rise when an airline manages capacity alongside demand.

American Airlines sees passenger yield increase 11.9%

American Airlines does not provide a directly comparable national average-ticket figure in the same format as Southwest or United, but its passenger-yield data shows a substantial pricing increase.

American’s passenger yield increased 11.9% in Q2 2026. Passenger revenue reached approximately $15.2 billion, representing a 15.9% increase from the previous year.

Passenger revenue per available seat mile increased 10.0%, while available seat miles increased 5.4%.

The figures suggest American generated significantly more revenue from passengers while continuing to expand its network capacity.

For an industry-wide analysis, American’s yield growth supports the broader picture of higher domestic passenger pricing.

Delta reports a 13% increase in domestic yield

Delta Air Lines recorded another significant increase in domestic pricing metrics.

During Q2 2026, Delta’s domestic yield increased 13%, while domestic unit revenue increased 12%. Domestic revenue reached approximately $10.7 billion, representing a 15% increase.

Domestic capacity increased by only 2%.

The difference between capacity growth and unit-revenue growth is important because it suggests that higher revenue was not simply the result of adding substantially more seats to the market.

Delta’s results therefore add further evidence that pricing and passenger demand remained strong during the quarter.

Alaska Airlines records a 9.6% yield increase

Alaska Airlines reported a 9.6% increase in passenger yield during Q2 2026.

Yield increased from 16.62 cents to 18.21 cents, while passenger revenue increased 9%. PRASM increased 7.5% and capacity rose only 1.0%.

The carrier also reported a modest decline in revenue passengers.

Alaska’s figures show that higher passenger revenue can occur even when traffic does not increase substantially. Passenger mix, premium demand, route structure and pricing can all affect the final yield result.

Frontier highlights the difference between fares and unit revenue

Frontier Airlines reported a sharp increase in RASM, or revenue per available seat mile, which reached 11.52 cents in Q2 2026.

That represents a substantial increase from the previous year.

However, RASM should not be described as an average ticket fare. The measure includes the effect of revenue generated across available capacity and can be affected by fares, ancillary revenue, passenger mix and other operating factors.

Frontier’s results therefore provide supporting evidence of stronger unit revenue, rather than a direct measurement of how much the average passenger paid.

Why are domestic fares increasing?

Several factors are shaping the US domestic airfare market.

Passenger demand remained resilient during the quarter, while several airlines kept capacity growth relatively controlled. At the same time, operating costs increased, particularly fuel expenses.

BTS reported that fuel represented 21.7% of US domestic airline operating expenses in Q2 2026, compared with 15.0% a year earlier.

Airlines are also generating more revenue through products and services beyond the basic ticket. BTS reported that passenger fares represented 70.3% of domestic operating revenue in Q2, while additional fees contributed to the wider revenue mix.

The result is a market where the headline ticket price does not necessarily represent the complete cost of flying.

What does this mean for US travellers?

The airline-by-airline evidence shows that domestic airfare inflation is not uniform.

United reported a 12.8% increase in average domestic fare, Southwest recorded an 18.9% increase in average passenger fare, JetBlue’s average fare increased 8.6%, and Allegiant’s average total fare rose 15.1%.

American, Delta and Alaska also reported substantial increases in passenger yield.

Yet route-level pricing can move in the opposite direction. Competition, capacity and seasonal demand can produce lower fares on individual routes even while the national average rises.

The BTS figure of $445 should therefore be treated as a national benchmark rather than the amount every US traveller should expect to pay.

US airlines entered Q2 2026 with higher domestic pricing across several major carriers. United, Southwest, JetBlue and Allegiant reported notable fare increases, while American, Delta and Alaska recorded stronger yields. However, fares vary by route, airline and passenger mix. Rising fuel costs and capacity decisions remain important market factors.

“US airlines are entering an important period as higher domestic fares reshape the travel landscape. The results from major carriers show how demand, capacity, operating costs and evolving airline products are influencing ticket prices. For travellers and the tourism industry, monitoring these changes will remain essential as the market develops.” says Anup Kumar Keshan, Editor-in-Chief, TTW

United Airlines, Southwest, Allegiant and other carriers reported higher domestic air fares in Q2 2026, while passenger yields also increased. However, each airline experienced different pricing conditions. Therefore, travellers should compare routes, airlines and fare options carefully, as capacity, demand, competition and additional services continue influencing US domestic travel prices.

Image: United Airlines