$404 Cheap Flights from Mesa (AZA) to Seattle (SEA)

View $404 flight on Sat, Nov 29, 2025Opens in a new window

Popular airlines from Phoenix - Mesa Gateway Airport (AZA) to Seattle-Tacoma International Airport (SEA)

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Cheap Flights from Mesa to Seattle (AZA-SEA)

Prices were available within the past 7 days and start at $404 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Flights from Mesa (AZA) to Seattle (SEA)
Origin airport
Phoenix - Mesa Gateway
Destination airport
Seattle - Tacoma Intl.
Distance
1123 mi

Mesa to Seattle Flights

The cheapest times to fly from Mesa to Seattle

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Mesa to Seattle are during the month of . You can find some of the cheapest flights from Mesa to Seattle with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Mesa to Seattle

Sunday is one of the best days to book for cheap flights from Mesa to Seattle: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Mesa to Seattle

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Mesa to Seattle in 2025. You can also book with separate airlines for your outbound and return journeys, from $404 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Mesa to Seattle flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Mesa to Seattle airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Phoenix - Mesa Gateway Airport (AZA) to Seattle - Tacoma Intl. Airport (SEA) cost?
Discover the latest flight deals from AZA to SEA by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from AZA to SEA?
The cheapest flights from AZA to SEA are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Phoenix - Mesa Gateway Airport (AZA) to Seattle - Tacoma Intl. Airport (SEA)?
You can't fly directly from Mesa, AZ (AZA-Phoenix - Mesa Gateway) to Seattle - Tacoma Intl. Airport (SEA). However, you'll find other airports that offer nonstop flights. Board your plane at Sky Harbor Intl. Airport (PHX) and head straight to Seattle without any detours.
What is the cheapest airline that flies from AZA to SEA?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from AZA to SEA. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Phoenix - Mesa Gateway Airport (AZA) to Seattle - Tacoma Intl. Airport (SEA)?
Nonstop flights from Phoenix - Mesa Gateway Airport (AZA) to Seattle - Tacoma Intl. Airport (SEA) aren't available daily, so you'll need to take a flight with a layover. Explore your options with our filter tool. Enter your dates and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from AZA to SEA?
Friday is usually the busiest day for flights, while Tuesday is often the quietest.* Keep in mind that flight schedules can change based on a range of factors, such as the airline and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Phoenix - Mesa Gateway Airport (AZA) to Seattle - Tacoma Intl. Airport (SEA)?
To avoid potential delays on the Phoenix - Mesa Gateway Airport (AZA) to Seattle - Tacoma Intl. Airport (SEA) route, fly before 3 PM. Later departures have a 22% higher chance of being canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Phoenix - Mesa Gateway Airport (AZA) to Seattle - Tacoma Intl. Airport (SEA) last-minute?
Last-minute fares from AZA to SEA are typically more expensive. For the best rates, start looking for flights early. That being said, if you're flexible with your travel plans, you may score a cheap fare right before you leave.
Is it cheaper to book an AZA to SEA flight and hotel package?
Compared with arranging hotels and flights separately, booking an AZA to SEA flight and hotel package with Expedia could lead to significant savings. Better still, having everything in one place will take the hassle out of planning your trip. Simply pick your flights and choose from our wide range of stays, then customize your trip with other add-ons like activities and car rentals.
Can I cancel or change the date of my flight from Phoenix - Mesa Gateway Airport (AZA) to Seattle - Tacoma Intl. Airport (SEA)?
It's usually possible to cancel or reschedule your AZA to SEA flight. However, if it's been more than 24 hours since booking, additional fees may apply. Check your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find more information on our Customer Service portal.

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*Available to One Key members.