Summer Flight Deals
Best booked Mar–Jun
Summer is peak season twice over: for Europe, and for domestic family travel to the national parks, Alaska, and the mountains. Both get more expensive the longer you wait, but on different clocks. Fares to Europe are best booked by March, before the summer schedule fills; domestic summer trips are usually best locked in by May.
The single biggest lever in summer is avoiding the very peak. Mid-June through mid-August is the crush; late May, early June, and the back half of August — when families with school-age kids drop out — are noticeably cheaper for the same destinations, and the weather is often just as good. For Europe specifically, the September shoulder is cheaper still if your dates can stretch past Labor Day.
Family trips reward booking early for another reason: seats together. Once a flight fills, getting four seats in one row without paying seat-selection fees gets hard, so booking ahead protects both the fare and the seating.
The routes below are the busiest summer pairs, domestic and international. Fares shown are recorded lows, not live quotes — call and an agent will price your dates and the cheaper shoulder weeks, and seat the family together.
Summer Flight Deals: lowest recorded fares
The cheapest dated fare on each matching route. Recorded lows, not live quotes.
- Mon, Nov 16 – Wed, Nov 18San Diego to SeattleSAN → SEA · SouthwestCall(708) 866-8751$100round trip · recorded low
- Tue, Feb 2 – Thu, Feb 25Portland to SeattlePDX → SEA · AlaskaCall(708) 866-8751$114round trip · recorded low
Recorded fares from cached search data, not live quotes. An agent confirms availability and today's price on the call.
Summer Flight Deals: routes
Timing a cheaper summer trip
- Book Europe by March and domestic summer trips by May; peak-summer fares are set early and hold.
- Late August is meaningfully cheaper than June and July as demand tapers.
- A cheaper European gateway plus a train or short hop often beats a nonstop to a pricey capital.
- Watch checked-bag rules on the cheapest transatlantic fares — the saving can vanish once bags are added.
Need help with this trip?
Licensed agents at our partner agency handle these by phone, 24/7. No charge for a quote.
Guides for this kind of trip
SeasonalSummer Flights to Europe: Booking Windows and Cheaper GatewaysWhen European summer fares are lowest, which gateways cost less, and how open-jaw itineraries save money.
SeasonalSummer Flights to India and Pakistan: Carriers, Bags, and Booking WindowsWhich airlines serve South Asia from the US, baggage allowances that change the real price, and when to book.
SeasonalFall Shoulder Season: The Cheapest Weeks of the Year to FlyWhy September through early November is the low point for fares, and where the deals are best.
Frequently asked questions
When should I book summer flights to Europe?
By March. Summer European fares are set early and rarely fall; waiting usually means paying more as the cheap buckets sell out.
When is the cheapest part of summer to fly?
Late August, as demand tapers toward the school year, is typically cheaper than June and July.
Do you book the national parks and Alaska?
Yes — agents price the gateway cities (Salt Lake City, Denver, Bozeman, Jackson Hole, Anchorage) and the best summer routings.
Are these fares live?
No. They are the lowest fares recorded recently on each route from cached search data, refreshed nightly. The agent quotes the live price when you call.
How do I get one of these fares?
Call (708) 866-8751 with the route and your dates. If the recorded fare is still available the agent books it; if not, they find the closest current fare across all airlines.
Can I book these online?
No. Every booking is made by phone with a licensed agent so names, dates, and fare rules are confirmed before payment.
Fares shown are the lowest recorded in our nightly fare snapshot — recorded lows, not live quotes; a licensed agent confirms today's price on the call. Compiled by the WarBird Flight editors; WarBird Flight is independent and not affiliated with any airline. Sources: DOT Office of Aviation Consumer Protection, Bureau of Transportation Statistics.