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$219+ Cheap flights from Brownsville to Seattle (BRO - SEA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/27. Fares are subject to change and may not be available on all flights or dates of travel.
BRO — SEA
Apr 12 — Apr 191
Sun 4/12
Sun 4/19
1 adult, Economy
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Cheap flight deals from Brownsville to Seattle

Cheapest flights from Brownsville to Seattle
Explore the most affordable flight options available from Brownsville to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 13, 2026.

This American Airlines deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/58:05 pm
BRO
-
SEA
1 stop6h 50m
American Airlines
Sat 4/1112:59 am
SEA
-
BRO
1 stop7h 13m
American Airlines
Deal found 3/8$349
This United Airlines deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/95:17 pm
BRO
-
SEA
1 stop7h 35m
United Airlines
Sat 5/167:36 pm
SEA
-
BRO
2 stops13h 51m
United Airlines
Deal found 3/8$354
This United Airlines deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/129:25 am
BRO
-
SEA
2 stops11h 07m
United Airlines
Tue 5/198:51 am
SEA
-
BRO
2 stops11h 08m
United Airlines
Deal found 3/9$359
This United Airlines deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/97:20 am
BRO
-
SEA
2 stops13h 12m
United Airlines
Sat 5/911:59 pm
SEA
-
BRO
1 stop9h 28m
United Airlines
Deal found 3/8$399
This American Airlines deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/2410:47 am
BRO
-
SEA
1 stop7h 10m
American Airlines
Fri 3/2712:59 am
SEA
-
BRO
1 stop7h 18m
American Airlines
Deal found 3/9$409
This United Airlines deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/84:44 pm
BRO
-
SEA
1 stop7h 58m
United Airlines
Tue 6/97:05 am
SEA
-
BRO
1 stop9h 32m
United Airlines
Deal found 3/8$418
This United Airlines deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/2412:10 pm
BRO
-
SEA
1 stop9h 15m
United Airlines
Sat 3/285:00 am
SEA
-
BRO
2 stops11h 50m
United Airlines
Deal found 3/9$434
This Alaska Airlines deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2210:42 am
BRO
-
SEA
1 stop9h 22m
Alaska Airlines
Sat 4/2510:57 pm
SEA
-
BRO
1 stop9h 15m
Alaska Airlines
Deal found 3/9$449
This Alaska Airlines deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/92:50 pm
BRO
-
SEA
1 stop8h 36m
Alaska Airlines
Sat 5/910:57 pm
SEA
-
BRO
1 stop9h 17m
Alaska Airlines
Deal found 3/8$463

Find flight deals from Brownsville to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Brownsville (BRO) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 13, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$349
(American Airlines)

Popular in

May

Cheapest in

September

Average price

$500
Provider with most accurate pricing for Brownsville South Padre Is. Intl-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Brownsville South Padre Is. Intl-Seattle/Tacoma Intl flights.
Search Deals
From Brownsville South Padre Is. Intl to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($75 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Brownsville to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 13, 2026.
Use the filters below to find and compare flights from Brownsville to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BrownsvilleSeattle

BRO - SEA

BROSEA

Brownsville South Padre Is. Intl

Sat 5/9

5:17 pm-10:52 pm

1 stop7h 35m

Seattle/Tacoma Intl

Sat 5/16

7:00 am-6:28 pm

1 stop9h 28m

$349

BrownsvilleSeattle

BRO - SEA

BROSEA

Brownsville South Padre Is. Intl

Tue 5/12

9:25 am-6:32 pm

2 stops11h 07m

Seattle/Tacoma Intl

Tue 5/19

8:51 am-9:59 pm

2 stops11h 08m

$359

BrownsvilleSeattle

BRO - SEA

BROSEA

Brownsville South Padre Is. Intl

Mon 6/8

4:44 pm-10:42 pm

1 stop7h 58m

Seattle/Tacoma Intl

Tue 6/9

7:05 am-6:37 pm

1 stop9h 32m

$418
Quickest round-trip

BrownsvilleSeattle

BRO - SEA

BROSEA

Brownsville South Padre Is. Intl

Wed 4/22

5:40 am-11:27 am

1 stop7h 47m

Seattle/Tacoma Intl

Sat 4/25

8:16 am-7:11 pm

1 stop8h 55m

$449

BrownsvilleSeattle

BRO - SEA

BROSEA

Brownsville South Padre Is. Intl

Sat 5/9

2:50 pm-9:26 am

2 stops20h 36m

Seattle/Tacoma Intl

Sat 5/16

9:00 am-10:53 pm

2 stops11h 53m

$459
Cheapest one-way

BrownsvilleSeattle

BRO - SEA

BROSEA

Brownsville South Padre Is. Intl

Mon 7/27

2:47 pm-10:26 pm

1 stop9h 39m

$315
Quickest one-way

BrownsvilleSeattle

BRO - SEA

BROSEA

Brownsville South Padre Is. Intl

Mon 7/27

4:44 pm-10:42 pm

1 stop7h 58m

$315

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/12

Sorted by cheapest first

Compare providers for flights from Brownsville to Seattle

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Brownsville to Seattle in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Brownsville-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Brownsville-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Brownsville-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Brownsville-Seattle flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Brownsville-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Brownsville to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Brownsville with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Brownsville to Seattle

What is the cheapest month to book a flight from Brownsville to Seattle?

Currently, December is the cheapest month in which you can book a flight from Brownsville to Seattle (average of $149). Flying from Brownsville to Seattle in July is currently the most expensive (average of $307). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated March 13, 2026.
Get a feel of what it's like to fly with United Airlines and American Airlines from Brownsville to Seattle by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,418 reviews

Entertainment

7.1

Crew

8.1

Overall

7.4

Food

6.6

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,418 reviews
United Airlines
7.4
Good
9,418 reviews

Entertainment

7.1

Crew

8.1

Overall

7.4

Food

6.6

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
American Airlines
7.1
Good
11,449 reviews
United Airlines
7.4
Good
9,418 reviews

Entertainment

7.1

Crew

8.1

Overall

7.4

Food

6.6

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Related info for your journey

Find useful and relevant information for your journey from Brownsville to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Brownsville to Seattle?

    Airlines like American Airlines and United Airlines fly from Brownsville to Seattle in about 6h 50m. The time it takes to get you to your destination can typically vary by up to 45m. The distance between Brownsville and Seattle is about 2010 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Brownsville to Seattle round-trip?

    American Airlines, at $308, was found to be the cheapest airline from Brownsville to Seattle. An alternate airline flying to your destination would be United Airlines. American Airlines is currently priced 33% below the average price you’ll pay for this route.

  • Can I find deals for flights from Brownsville to Seattle that include hotel bookings?

    Yes. In addition to deals on Brownsville to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Brownsville to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Brownsville to Seattle.

  • Can I find deals for business class flights from Brownsville to Seattle?

    Yes. Cheapflights offers flight deals from Brownsville to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Brownsville to Seattle?

    Currently, December is the cheapest month in which you can book a flight from Brownsville to Seattle (average of $149). Flying from Brownsville to Seattle in July is currently the most expensive (average of $307). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
SeaTac
Lakewood
Ocean Shores
Olympia
Kent
Lynnwood
Edmonds
Lacey
Renton
Puyallup
Kirkland
Tukwila
Fife
Aberdeen
Shoreline
Marysville
Centralia
Federal Way
Chehalis

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 2 airlines flying from Brownsville to Seattle

Discover the top 2 airlines that operate flights from Brownsville to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 13, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$308Average$482FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$339Average$468FlexibilityNo cancel feeOn-time69%

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