$109 Cheap United flights Tucson (TUS) to Seattle (SEA)

View $109 flight on Wed, Oct 8, 2025Opens in a new window

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$109 Cheap United flights Tucson (TUS) to Seattle (SEA)

Prices were available within the past 7 days and start at $109 for one-way flights and $207 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, Jul 30 - Sat, Aug 9
TUS
Tucson
SEA
Seattle
$207 Roundtrip, found 1 hour ago
$207
Roundtrip
found 1 hour ago
Select United flight, departing Wed, Jul 30 from Tucson to Seattle, returning Sat, Aug 9, priced at $207 found 1 hour ago
United
Sun, Sep 28 - Wed, Oct 8
TUS
Tucson
SEA
Seattle
$217 Roundtrip, found 1 hour ago
$217
Roundtrip
found 1 hour ago
Select United flight, departing Sun, Sep 28 from Tucson to Seattle, returning Wed, Oct 8, priced at $217 found 1 hour ago
United
Sun, Aug 31 - Wed, Sep 10
TUS
Tucson
SEA
Seattle
$228 Roundtrip, found 1 hour ago
$228
Roundtrip
found 1 hour ago
Select United flight, departing Sun, Aug 31 from Tucson to Seattle, returning Wed, Sep 10, priced at $228 found 1 hour ago
United
Wed, Aug 20 - Sat, Aug 30
TUS
Tucson
SEA
Seattle
$238 Roundtrip, found 1 hour ago
$238
Roundtrip
found 1 hour ago
Select United flight, departing Wed, Aug 20 from Tucson to Seattle, returning Sat, Aug 30, priced at $238 found 1 hour ago
United
Thu, Aug 7 - Sat, Aug 9
TUS
Tucson
SEA
Seattle
$245 Roundtrip, found 2 hours ago
$245
Roundtrip
found 2 hours ago
Select United flight, departing Thu, Aug 7 from Tucson to Seattle, returning Sat, Aug 9, priced at $245 found 2 hours ago
Flights from Tucson (TUS) to Seattle (SEA)
Origin airport
Tucson Intl.
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, Southwest Airlines, United
Popular airline
Alaska Airlines
Distance
1215 mi
Average flight time
4 hours 5 mins

Frequently asked questions

How much is a United Airlines flight from Tucson Intl. Airport (TUS) to Seattle - Tacoma Intl. Airport (SEA)?
You can find affordable round-trip United Airlines flights from $207 from TUS to SEA by sorting your results from "Price (lowest to highest)" on Expedia. Or look for deals from $109 for a one-way journey.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from TUS to SEA with United Airlines?
January is one of the least expensive months to travel to Seattle with United Airlines. You could also find great deals on return and one-way fares in February.
What is the cheapest time to book flights from Tucson Intl. Airport (TUS) to Seattle - Tacoma Intl. Airport (SEA) with United Airlines?
Start searching one to three months ahead of your travel date to get cheaper fares on United Airlines flights from Tucson Intl. Airport (TUS) to Seattle - Tacoma Intl. Airport (SEA). You can save 25% by booking your domestic flight 34 to 86 days in advance versus last-minute reservations made 6 to 12 days out. You could also reduce costs by buying your fare on a Sunday, as it's 6% cheaper on average than a Monday, the most expensive day to book.* Time it well, and you can enjoy significant savings on domestic trips.*Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does United Airlines fly nonstop from Tucson Intl. Airport (TUS) to Seattle - Tacoma Intl. Airport (SEA)?
Fill in your dates, press search and select the "Nonstop" filter on Expedia to browse any direct flights from TUS to SEA with United Airlines or another carrier.
What is the earliest United Airlines flight from TUS to SEA?
Sort your results by "Morning" and "Early Morning" to browse the earliest departures from TUS to SEA. Taking off early means you're 20% less likely to experience cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does United Airlines fly into in Seattle?
Seattle - Tacoma Intl. Airport (SEA) is the main Seattle hub for United Airlines flights from Tucson Intl. Airport (TUS).
Why fly with United Airlines from TUS to SEA?
A rewarding loyalty program and the ability to rack up points through United Mileage Plus are the start of the reasons to leave from TUS to SEA with United Airlines. Plus, by joining Expedia's free One Key™ program, you can receive OneKeyCash™* alongside any airline loyalty program earnings. It's yours to spend on your next adventure.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my United Airlines flight from Tucson Intl. Airport (TUS) to Seattle - Tacoma Intl. Airport (SEA)?
Depending on the type of fare you purchased, a fee will generally apply if you change or cancel your flight more than 24 hours after it's been confirmed. To secure tickets with more flexibility, select our "Changes included" and "No cancel fee" boxes when searching for flights. For more information on canceling or changing your reservation, head to "Trips," select your flight and click on "Manage Booking."

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