$140 Cheap United flights Seattle (SEA) to Gulfport (GPT)

View $140 flight on Tue, Oct 7, 2025Opens in a new window

  • Plan, book, fly with confidence

  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 30% on select hotels after you book a flight*
  • one key icon
    Earn twice
    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

$140 Cheap United flights Seattle (SEA) to Gulfport (GPT)

Prices were available within the past 7 days and start at $140 for one-way flights and $266 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sat, Nov 22 - Wed, Nov 26
SEA
Seattle
GPT
Gulfport
$266 Roundtrip, found 1 day ago
$266
Roundtrip
found 1 day ago
Select United flight, departing Sat, Nov 22 from Seattle to Gulfport, returning Wed, Nov 26, priced at $266 found 1 day ago
United
Wed, Aug 13 - Mon, Aug 18
SEA
Seattle
GPT
Gulfport
$270 Roundtrip, found 3 days ago
$270
Roundtrip
found 3 days ago
Select United flight, departing Wed, Aug 13 from Seattle to Gulfport, returning Mon, Aug 18, priced at $270 found 3 days ago
United
Wed, Aug 13 - Wed, Aug 20
SEA
Seattle
GPT
Gulfport
$275 Roundtrip, found 3 days ago
$275
Roundtrip
found 3 days ago
Select United flight, departing Wed, Aug 13 from Seattle to Gulfport, returning Wed, Aug 20, priced at $275 found 3 days ago
United
Tue, Oct 7 - Tue, Oct 21
SEA
Seattle
GPT
Gulfport
$277 Roundtrip, found 4 hours ago
$277
Roundtrip
found 4 hours ago
Select United flight, departing Tue, Oct 7 from Seattle to Gulfport, returning Tue, Oct 21, priced at $277 found 4 hours ago
United
Wed, Aug 13 - Wed, Aug 20
SEA
Seattle
GPT
Gulfport
$280 Roundtrip, found 3 days ago
$280
Roundtrip
found 3 days ago
Select United flight, departing Wed, Aug 13 from Seattle to Gulfport, returning Wed, Aug 20, priced at $280 found 3 days ago
United
Tue, Oct 7 - Tue, Oct 21
SEA
Seattle
GPT
Gulfport
$282 Roundtrip, found 4 hours ago
$282
Roundtrip
found 4 hours ago
Select United flight, departing Tue, Oct 7 from Seattle to Gulfport, returning Tue, Oct 21, priced at $282 found 4 hours ago
Flights from Seattle (SEA) to Gulfport (GPT)
Origin airport
Seattle - Tacoma Intl.
Destination airport
Gulfport - Biloxi Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, United
Popular airline
United
Distance
2113 mi

Frequently asked questions

How much is a United Airlines flight from Seattle - Tacoma Intl. Airport (SEA) to Gulfport - Biloxi Intl. Airport (GPT)?
You can discover affordable return United Airlines flights from $266 from SEA to GPT by sorting your results from "Price (lowest to highest)" on Expedia. Or search for deals from $140 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 SEA to GPT with United Airlines?
January is one of the cheapest months to fly to Gulfport with United Airlines. You could also find great prices on one-way and round-trip tickets in November.
What is the cheapest time to book flights from Seattle - Tacoma Intl. Airport (SEA) to Gulfport - Biloxi Intl. Airport (GPT) with United Airlines?
Look for affordable United Airlines flights from Seattle - Tacoma Intl. Airport (SEA) to Gulfport - Biloxi Intl. Airport (GPT) one to three months before 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 type and itinerary, the best day to book a domestic flight is generally Sunday and the most expensive tends to be Monday. Passengers who book on a Sunday can save 6% on average compared to those who book 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 Seattle - Tacoma Intl. Airport (SEA) to Gulfport - Biloxi Intl. Airport (GPT)?
To find out if there's a direct route from SEA to GPT with United Airlines or any other carriers, check the "Nonstop" box when looking for flights.
What is the earliest United Airlines flight from SEA to GPT?
To find the earliest departures from SEA to GPT with United Airlines, sort your results by "Early Morning" and "Morning." Choosing an early flight generally means cancellations are less likely.**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 Gulfport?
United Airlines flights from Seattle - Tacoma Intl. Airport (SEA) to Gulfport touch down at Gulfport - Biloxi Intl. Airport (GPT). This is the main entry point to this city.
Why fly with United Airlines from SEA to GPT?
Offering a rewarding loyalty program, United Airlines is a top choice for many travelers departing from SEA to GPT. Plus, as a United Mileage Plus and One Key™ member booking through Expedia, you can earn OneKeyCash™* on eligible flights along with your airline miles.*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 Seattle - Tacoma Intl. Airport (SEA) to Gulfport - Biloxi Intl. Airport (GPT)?
Typically, you can cancel or change your flight, although there may be a charge if your booking was made over 24 hours ago. Need to keep your options open? Use our "No cancel fee" or "Changes included" filter to find flights that won't penalize you if you have to adjust your plans. To update your booking, head to "Trips," select your flight and click on "Manage Booking" for further information.

Explore a world of travel with Expedia

*Available to One Key members.