$124 Cheap United flights McAllen (MFE) to Seattle (SEA)

View $124 flight on Sat, Oct 4, 2025Opens in a new window

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$124 Cheap United flights McAllen (MFE) to Seattle (SEA)

Prices were available within the past 7 days and start at $124 for one-way flights and $235 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Fri, Oct 31 - Tue, Nov 4
MFE
McAllen
SEA
Seattle
$235 Roundtrip, found 4 days ago
$235
Roundtrip
found 4 days ago
Select United flight, departing Fri, Oct 31 from McAllen to Seattle, returning Tue, Nov 4, priced at $235 found 4 days ago
United
Sat, Sep 6 - Wed, Sep 10
MFE
McAllen
SEA
Seattle
$237 Roundtrip, found 2 days ago
$237
Roundtrip
found 2 days ago
Select United flight, departing Sat, Sep 6 from McAllen to Seattle, returning Wed, Sep 10, priced at $237 found 2 days ago
Flights from McAllen (MFE) to Seattle (SEA)
Origin airport
Miller Intl.
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, United
Popular airline
Alaska Airlines
Distance
1965 mi

Frequently asked questions

How much is a United Airlines flight from Miller Intl. Airport (MFE) to Seattle - Tacoma Intl. Airport (SEA)?
Scoring cheap one-way United Airlines flights from MFE to SEA from $124 on Expedia couldn't be simpler — just filter by "Price (lowest to highest)." Or check out our affordable round-trip fares from $235 for your next exciting getaway.**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 MFE to SEA with United Airlines?
Look for round-trip or one-way flights to Seattle in January or February. You could find an affordable fare with United Airlines during these off-season months.
What is the cheapest time to book flights from Miller Intl. Airport (MFE) to Seattle - Tacoma Intl. Airport (SEA) with United Airlines?
Look for affordable United Airlines flights from Miller Intl. Airport (MFE) to Seattle - Tacoma Intl. Airport (SEA) one to three months prior to your departure. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. No matter the fare class and itinerary, the best day of the week to book a domestic flight is generally Sunday and the most expensive day tends to be Monday. Passengers who book on a Sunday can save 6% on average compared to those who book their travel on a Monday.**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 Miller Intl. Airport (MFE) to Seattle - Tacoma Intl. Airport (SEA)?
To see if there's a direct route from MFE to SEA with United Airlines or other airlines, use our "Nonstop" filter when looking for tickets.
What is the earliest United Airlines flight from MFE to SEA?
Find United Airlines's earliest flights from MFE to SEA by checking the "Early Morning" and "Morning" filters. Not only will you get to where you're going sooner, early departures also have a 20% less chance of being canceled.**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 gateway for United Airlines flights from Miller Intl. Airport (MFE).
Why fly with United Airlines from MFE to SEA?
A rewarding loyalty program and the ability to rack up points through United Mileage Plus are the start of the reasons to jet off from MFE to SEA with United Airlines. Plus, when you sign up to Expedia's free One Key™ program, you can earn OneKeyCash™* in addition to United Airlines's 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 Miller Intl. Airport (MFE) to Seattle - Tacoma Intl. Airport (SEA)?
Depending on your fare type, a fee typically applies if you change or cancel your flight more than 24 hours after it's been confirmed. To secure plane tickets with more flexibility, select our "Changes included" or "No cancel fee" filter when searching for flights. For additional information on modifying or canceling your reservation, visit "Trips," select your flight and click on "Manage Booking."

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