Cheap flights from Seattle

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Fast facts on flights from Seattle

Cheapest flight ticket foundSeattle Lake Union SPB, Seattle Boeing Fld
Cheapest route found$55
Cheapest month to flySeptember
Most popular airlineAlaska Airlines
Most popular destinationSingapore

The best flight deals leaving from Seattle soon

Looking for a cheap last-minute deal or the best return flight from Seattle? If you want to travel from Seattle next month, return fares start from $133. Find the lowest prices on one-way and return tickets right here.

Booking flights from Seattle: frequently asked questions

The best price we found for a return flight from Seattle to Denver is $111. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
After crunching the numbers on our flight calendar, we found that the cheapest date to fly out of Seattle is Wednesday, 19 August 2026, to Denver International.
It's easy with us. Look for cheap flights and flight offers from Seattle to anywhere using Everywhere search– it'll show you the lowest fares for your chosen time period.

You can also set up Price Alerts for flights you'd like to keep an eye on. We'll let you know when a particular fare from Seattle rises or falls so you can book when it's cheapest.
Sure – our flight search allows you to check for outbound flights from Seattle / Tacoma International Airport departing the very same day. But if you want the cheapest fare, we recommend you book around 30 days before departure. This is on average, the time when fares are cheaper.
Of course! Just select 'one way' when you search with us. And here's an extra tip: sometimes searching for a one way ticket from Seattle, and another one-way back home, can yield cheaper tickets than a return fare with an airline.
It's best to arrive at the airport at least 2 hours before the time of your flight departure, so you have enough time to check any luggage in, clear security and find your gate.
The cheapest flight from Seattle we found in the next 1 year is to Denver International for $111. It departs from Seattle / Tacoma International Airport on Wednesday, 19 August 2026. There are also cheap flights from Seattle to Vancouver Coal Harbour for $270 and Mexico City Juarez International for $420.

How to find cheap flights from Seattle

  • Book a one-way flight from Seattle for just $55. This is the lowest price we've found for a departure from Seattle / Tacoma International.

  • Round-trip fares start at $111.

  • Denver International is the cheapest city you can fly into from Seattle.

  • Comparing flights across different airports in Seattle can help you avoid overpaying. Browse the fares from Seattle / Tacoma International Airport (SEA), Paine Field Airport (PAE) and Seattle Boeing Fld Airport (BFI).

  • Catch fare drops as they happen with Price Alerts delivered right to your app or inbox. Simply sign up for these automatic notifications for the flights you're interested in and book at the perfect time, every time.

  • Timing matters when booking plane tickets from Seattle. For domestic routes, try to secure your seats one to three months before travelling, while international trips are often best booked two to six months in advance.

  • If you know where you want to jet off to, choose 'Add nearby airports' when you start your search. This will display flight prices to all airports in or around your destination.

  • Willing to go wherever the best deals are? Set 'Seattle' as your departure city and choose 'Explore everywhere' as your destination. Then sort by 'Cheapest flights' to find the best fares.

Flying from Seattle: what you need to know

  • All departures from Seattle are listed in the local UTC-8 time zone.

  • These are the top airlines flying from Seattle, with one example of an airport they operate from:

    • Alaska Airlines: Seattle / Tacoma International Airport (SEA)

    • Delta: Seattle / Tacoma International Airport (SEA)

    • United: Seattle / Tacoma International Airport (SEA)

  • Travelling to another country? Entry rules can differ depending on your passport, travel plans and length of stay, so always check ahead. Airlines and official embassy sites will have reliable advice on visas or other documents you may need.

Best time to fly from Seattle

  • Flights departing from Seattle are usually most affordable in August.

  • July is generally the busiest month to travel. Periods of high demand like this often bring higher fares.

  • The quietest time to fly out of the city is February. Fewer people are booking seats, so airlines tend to drop prices to help fill seats.

  • Consider booking a flight from Seattle departing Tuesday or Wednesday. Midweek is usually a more affordable time to travel compared to weekends.

Where to fly to from Seattle

  • Discover the best of Vancouver, or get to know London or Taipei. From Seattle, these are among the most popular international cities to visit.

  • Go-to choices for getaways closer to home include Los Angeles, San Francisco and Portland.

  • Or expand your travels into Canada, Mexico or the United Kingdom. They rank among the most visited countries when flying from Seattle.

  • Clocking in at about 30 minutes, the shortest flight out of Seattle will bring you to Victoria.

Leaving from Seattle / Tacoma International Airport (SEA)

Flying out of Paine Field Airport (PAE)

  • Around 32 kilometres from the city centre, Paine Field Airport (PAE) is another option to weigh up when searching for flight tickets from Seattle.

  • Public transport will get you there in roughly 1 hour 30 minutes. If you're driving from the centre, it'll take 40 minutes or so.

  • Prepare for departure with Alaska Airlines, which offers flights from PAE.

  • If you'd prefer to be close to your boarding gate before your flight from Seattle, these hotels near Paine Field Airport have you covered for the night:

Seattle Boeing Fld Airport (BFI) departures

  • Seattle Boeing Fld Airport, which is about 10 kilometres from the centre, adds to the city's list of major airports.

  • The drive from the centre to the airport takes roughly 20 minutes. If you're planning to take public transport, expect a journey of around 35 minutes.

  • Lock in your flight out of Seattle from Seattle Boeing Fld Airport, then explore nearby hotels to stay close to where you need to be. Georgetown Inn Seattle and La Hacienda Motel are a couple of the best options available.