The US and Costa Rica Match the Caribbean’s Holiday Travel Momentum as Two One-Way Tickets Deliver Potential Savings of Up to 30%

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US holiday travellers could unlock substantial airfare savings this festive season by comparing two one-way tickets with conventional return bookings. KAYAK’s 12 October 2026 analysis found potential savings of up to 29% on domestic flights and 30% internationally, although the results vary by destination and itinerary. Chicago recorded a potential domestic saving of 28%, while San Diego reached 22%. International comparisons highlighted Simpson Bay in St Maarten at 30% and Liberia in Costa Rica at 23%. With Thanksgiving falling on 26 November and Christmas on 25 December, travellers now face a crucial question. Can separate bookings deliver genuine savings after baggage charges, seat selection and disruption risks enter the calculation?

Holiday Airfares Challenge the Return-Ticket Habit

The traditional return booking remains a familiar choice for American holidaymakers. However, KAYAK’s latest research suggests that travellers could benefit from comparing individual outbound and inbound fares before committing to a single itinerary. Its October analysis examined flight-search patterns and identified destinations where combining separate fares could cost considerably less.

The distinction matters because the cheapest outbound flight and the cheapest return flight may belong to different airlines. A traveller could therefore assemble a more economical itinerary by selecting each journey independently. Nevertheless, this approach does not guarantee a lower bill, particularly when airlines apply different baggage allowances and fare restrictions.

KAYAK reported maximum potential savings of 29% domestically and 30% internationally. These figures represent selected comparisons rather than universal discounts available across the American aviation market. Travellers should treat them as a reason to investigate fares, not as a promise that every booking will produce comparable savings.

Chicago and San Diego Lead Domestic Comparisons

Chicago and San Diego stand out in KAYAK’s destination-level findings. The company reported potential savings of 28% for Chicago and 22% for San Diego when travellers compared separate one-way bookings with return fares. Washington, DC, recorded the largest domestic difference at 29%.

These findings make the three cities useful starting points for a wider holiday airfare investigation. Chicago’s extensive domestic connections offer numerous possible airline combinations, while San Diego provides another market for examining competitive fares. New York also deserves attention because its several major airports can introduce additional choices, although changing airports may create extra ground-transport costs.

The published figures do not establish that every route departing from these cities offers the same discounts. Instead, travellers should compare specific origin-and-destination pairs, using identical travel dates and equivalent cabin conditions. A lower fare also needs to survive the addition of baggage, seat-selection and other relevant charges before it qualifies as a genuine saving.

The figures above reflect KAYAK’s selected destination comparisons, not guaranteed savings on every route. New York remains a proposed market for further testing rather than a destination with an established percentage in this ranking.

Costa Rica and the Caribbean Offer International Opportunities

International routes provide another compelling dimension to the research. KAYAK identified Simpson Bay in St Maarten as the destination with the largest reported international difference, at 30%. Liberia in Costa Rica followed at 23%, while Lima in Peru recorded 20%.

These results are particularly relevant to Americans planning winter-sun holidays. Mexico, Costa Rica and the Caribbean attract travellers seeking beaches, outdoor activities and warmer weather during the northern hemisphere’s winter. However, the cheapest flight combination may not offer the most convenient arrival time or the most generous baggage allowance.

Costa Rica also illustrates why destination-specific research matters. Liberia serves as a gateway to the country’s Pacific coast and resort areas, while San José offers access to a different range of urban, cultural and nature-based itineraries. Comparing both airports could reveal differences in flight prices, onward transport requirements and overall holiday costs.

Mexico should feature in the same investigation, with Cancún and Mexico City providing contrasting leisure and city-break markets. For the Caribbean, St Maarten and San Juan offer useful comparison points. Yet the available headline percentages cannot establish the cheapest option for these additional routes without fresh, date-specific fare checks.

Thanksgiving Creates a Narrow Booking Window

Thanksgiving travel will provide the first major test of the strategy. The holiday falls on Thursday, 26 November 2026, and many travellers will compete for flights around the preceding weekend. KAYAK’s analysis suggests that domestic fares have historically reached a low around five weeks before Thanksgiving, with prices tending to rise sharply within two weeks of departure.

That timing places October at an important point for travellers who have not yet booked. However, historical patterns do not guarantee that prices will fall on a particular route or date. Flight availability, remaining seat inventory and demand can change the outcome.

KAYAK also reported that flying on Thanksgiving Day could save up to 19% domestically and 49% internationally compared with departing on 20 November, which its analysis identified as the priciest departure date. These figures describe date-based comparisons, not the additional savings available from separate ticket purchases. Combining both strategies may help some travellers, but only a direct fare comparison can establish the result.

Christmas Travel Rewards Date Flexibility

Christmas introduces a different set of pricing considerations. KAYAK’s findings indicate that fares have historically dipped between four and seven weeks before departure, broadly covering mid-November through early December. Travellers who can shift their departure into Christmas week may also find better prices than those travelling during the preceding week.

The company reported potential savings of up to 18% on domestic flights and 34% on international fares when comparing travel during Christmas week with the week before. These figures should remain separate from the maximum savings associated with booking structures because the comparisons measure different factors.

For a traveller visiting family, changing departure dates by even a day may be difficult. Leisure travellers heading to Mexico or the Caribbean may have more flexibility, particularly if they can extend their holiday or travel outside the busiest weekends. The most effective approach is to test several feasible dates before choosing the cheapest combination.

KAYAK based its 2026 holiday analysis on searches conducted between 1 April and 1 September 2026. It compared the 2026 holiday period with corresponding dates in 2025, using average round-trip economy fares unless otherwise stated. The results offer a useful seasonal benchmark, but individual fares may differ substantially.

Baggage Charges Can Erase Apparent Savings

The headline fare represents only one part of the final travel bill. Separate bookings may involve airlines with different rules for checked bags, cabin baggage, seat selection and changes. Travellers who compare only the displayed ticket prices risk choosing an itinerary that becomes more expensive during checkout.

American Airlines provides a useful illustration of the potential cost. Its published policy lists a first checked-bag fee of $50, or $45 when paid online, for many journeys within or between the United States and specified regional destinations. The applicable fee depends on the ticket issue date, route and fare conditions.

Consider a traveller paying the published online rate for one checked bag on each direction. The combined baggage charge would reach $90, before any additional bags or other extras. The correct comparison must therefore calculate baggage costs for both booking options rather than assume that separate tickets automatically produce the lower total.

Seat selection can also affect the calculation, particularly for families who want to sit together. Travellers should check whether their fare includes advance seat assignments and whether different airlines impose separate charges. A modest headline saving may disappear when both directions require additional payments.

Separate Bookings Introduce Disruption Risks

Price is not the only consideration when flights sit on separate reservations. If the first flight suffers a delay and the passenger misses a later flight booked independently, the second airline may treat the passenger as a no-show. It generally has no obligation to protect a separate reservation simply because the earlier flight caused the problem.

This risk becomes particularly important when travellers construct connecting journeys from separate tickets. A short connection may look attractive in a fare search, but immigration procedures, baggage collection, terminal transfers and security screening can consume valuable time. An overnight stay or a longer connection may reduce some risks, although it can also increase the total cost.

The same principle applies when travellers choose different airports for outbound and inbound journeys. New York’s airport options can widen the search, but a journey involving a transfer between airports requires additional transport planning. Travellers should calculate the cost and time of that transfer before deciding whether the cheaper combination is worthwhile.

A single return reservation may offer a simpler itinerary and more straightforward handling of changes to the booked journey. However, passengers should still examine the actual ticket conditions rather than assume that every return booking provides identical protection. The cheapest option is ultimately the one that meets the traveller’s financial and practical requirements.

Consumer Rules Make Fare Transparency Essential

The US Department of Transportation provides guidance on airline ticket purchases, refunds and optional charges. Its consumer information explains that airlines must either offer a qualifying 24-hour cancellation refund or hold a reservation for 24 hours when tickets are purchased at least seven days before departure. Airlines do not have to offer both options.

Travellers should not automatically assume that purchasing separate tickets creates one combined cancellation window. Each reservation has its own booking circumstances, and passengers should verify the applicable airline policy before paying. They should also check the terms governing voluntary changes, refunds and missed flights.

The department has also addressed transparency around ancillary fees. Its published rule on airline fee transparency sought upfront disclosure of charges for baggage, carry-on items and changes or cancellations. Travellers should check the latest applicable requirements and the airline’s own terms when comparing fares, particularly where different carriers are involved.

These consumer protections help travellers understand the costs attached to a booking. They do not, however, remove the need to compare separate reservations carefully or guarantee that an independently booked connection will be protected.

A Clear Method for Comparing the Total Fare

A reliable comparison requires the same passenger count, dates, cabin class and baggage requirements for both booking methods. Travellers should record the fare-search date, airlines, airports, stopovers, journey duration and ticket conditions. They should then calculate the complete cost of each option.

The final calculation is straightforward: subtract the total cost of the separate bookings from the total cost of the return ticket. A positive difference favours separate bookings, while a negative result favours the conventional return fare. Divide the difference by the return-ticket total and multiply by 100 to calculate the percentage saving.

Travellers should also compare practical factors such as departure times, connection duration and arrival airports. A cheaper itinerary may require an inconvenient overnight stop or additional ground transport. The final choice should reflect both the monetary difference and the consequences of disruption.

Smarter Fare Searches Could Reshape Holiday Planning

KAYAK’s findings challenge the assumption that one booking structure always delivers the best price. Its July 2026 comparison found that domestic return fares and separate one-way combinations were often almost identical on the routes tested. For example, San Francisco–New York cost $363 for a return ticket and $364 for separate one-way fares in that sample.

International results varied as well. KAYAK reported a Los Angeles–Tokyo comparison of $896 for a return ticket against $879 for separate one-way fares. These examples demonstrate why travellers should compare actual itineraries rather than rely on a universal rule.

The broader lesson for the travel industry is that price transparency and flexible search behaviour remain important during peak periods. Travellers may discover better value by combining airlines, adjusting departure dates or comparing nearby airports. However, each change can affect convenience, baggage costs and disruption exposure.

For travel advisers and booking platforms, these comparisons also underline the value of presenting the full cost of an itinerary. A fare that looks cheapest in search results may not remain cheapest once optional services and practical constraints enter the calculation.

Better Holiday Decisions Begin With Full-Cost Comparisons

American holidaymakers should treat the reported savings as a starting point for their own research. Chicago, San Diego, Costa Rica and St Maarten provide useful examples, but the final outcome depends on the precise route, travel dates and ticket conditions. New York and Mexico should also be tested through direct comparisons rather than assumed to offer similar discounts.

The most useful strategy combines fare flexibility with a careful review of baggage, connections and cancellation conditions. Travellers who can adjust their dates may find better value, while passengers carrying substantial luggage or relying on tight connections may prefer a simpler itinerary. Comparing the complete cost of each option, rather than the initial fare alone, offers the clearest route to a more economical holiday booking.