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$225+ 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 4/17. Fares are subject to change and may not be available on all flights or dates of travel.
BRO — SEA
Mrz 19 — Mrz 261
Do 3/19
Do 3/26
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 Februar 17, 2026.

This United Airlines deal was found by Cheapflights users on 2/17. 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.
Di 3/175:15 am
BRO
-
SEA
2 stops12h 59m
United Airlines
Di 3/246:45 am
SEA
-
BRO
1 stop7h 37m
United Airlines
Deal found 2/17$379
This United Airlines deal was found by Cheapflights users on 2/16. 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.
Di 3/35:14 pm
BRO
-
SEA
1 stop7h 46m
United Airlines
Sa 3/76:45 am
SEA
-
BRO
1 stop7h 37m
United Airlines
Deal found 2/16$389
This United Airlines deal was found by Cheapflights users on 2/16. 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.
Fr 4/177:15 am
BRO
-
SEA
1 stop7h 32m
United Airlines
Di 4/218:55 am
SEA
-
BRO
2 stops10h 52m
United Airlines
Deal found 2/16$434
This American Airlines deal was found by Cheapflights users on 2/17. 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.
Di 3/175:40 am
BRO
-
SEA
1 stop7h 11m
American Airlines
Di 3/242:18 pm
SEA
-
BRO
1 stop6h 36m
American Airlines
Deal found 2/17$440
This American Airlines deal was found by Cheapflights users on 2/14. 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.
So 8/96:57 pm
BRO
-
SEA
1 stop7h 57m
American Airlines
Di 8/187:50 am
SEA
-
BRO
1 stop8h 37m
American Airlines
Deal found 2/14$454
This United Airlines deal was found by Cheapflights users on 2/14. 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.
Di 2/247:18 am
BRO
-
SEA
1 stop8h 06m
United Airlines
Sa 2/287:00 am
SEA
-
BRO
2 stops12h 31m
United Airlines
Deal found 2/14$544

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 Februar 17, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$379
(United Airlines)

One-way from

$225
(United Airlines)

Popular in

December

Cheapest in

September

Average price

$521
Provider with most accurate pricing for Brownsville South Padre Is. Intl-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for Brownsville South Padre Is. Intl-Seattle/Tacoma Intl flights.
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From Brownsville South Padre Is. Intl to Seattle/Tacoma Intl
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One-way flight from Brownsville South Padre Is. Intl to Seattle/Tacoma Intl
Search Deals
High demand for flights, 1% potential price rise
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Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in February 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 Februar 17, 2026.
Use the filters below to find and compare flights from Brownsville to Seattle that are best for you.

Fly from

Brownsville

Fly to

Seattle

Route

Depart

Return

Price

BrownsvilleSeattle

BRO - SEA

BROSEA

Brownsville South Padre Is. Intl

Di 3/17

5:15 am-4:14 pm

2 stops12h 59m

Seattle/Tacoma Intl

Di 3/24

6:45 am-4:22 pm

1 stop7h 37m

$379

BrownsvilleSeattle

BRO - SEA

BROSEA

Brownsville South Padre Is. Intl

Di 3/3

5:14 pm-11:00 pm

1 stop7h 46m

Seattle/Tacoma Intl

Sa 3/7

6:45 am-4:22 pm

1 stop7h 37m

$389

BrownsvilleSeattle

BRO - SEA

BROSEA

Brownsville South Padre Is. Intl

Fr 4/17

7:15 am-12:47 pm

1 stop7h 32m

Seattle/Tacoma Intl

Di 4/21

8:55 am-9:47 pm

2 stops10h 52m

$434

BrownsvilleSeattle

BRO - SEA

BROSEA

Brownsville South Padre Is. Intl

Di 3/17

5:40 am-10:51 am

1 stop7h 11m

Seattle/Tacoma Intl

Di 3/24

2:18 pm-10:54 pm

1 stop6h 36m

$440

BrownsvilleSeattle

BRO - SEA

BROSEA

Brownsville South Padre Is. Intl

Di 2/24

7:18 am-1:24 pm

1 stop8h 06m

Seattle/Tacoma Intl

Sa 2/28

7:00 am-9:31 pm

2 stops12h 31m

$544

BrownsvilleSeattle

BRO - SEA

BROSEA

Brownsville South Padre Is. Intl

Fr 4/17

7:15 am-12:47 pm

1 stop7h 32m

$225

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/16

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 February.
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 Februar 17, 2026.
Get a feel of what it's like to fly with Delta, 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.
Delta
7.9
Good
8,207 reviews

Overall

7.9

Entertainment

7.8

Crew

8.5

Comfort

7.9

Food

7.2

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Peter,Oct 2023

MSP - GEG

The amount of carry on is put of control. We were in group 3 boarding and there was no room in upper storage for our 1 bag (between 2 people) Just because we can’t afford to up grade our seats… $2000 more. We get penaltized. Make us feel less than
Delta
7.9
Good
8,207 reviews
Delta
7.9
Good
8,207 reviews

Overall

7.9

Entertainment

7.8

Crew

8.5

Comfort

7.9

Food

7.2

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Peter,Oct 2023

MSP - GEG

The amount of carry on is put of control. We were in group 3 boarding and there was no room in upper storage for our 1 bag (between 2 people) Just because we can’t afford to up grade our seats… $2000 more. We get penaltized. Make us feel less than
United Airlines
7.4
Good
9,312 reviews
Delta
7.9
Good
8,207 reviews

Overall

7.9

Entertainment

7.8

Crew

8.5

Comfort

7.9

Food

7.2

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Peter,Oct 2023

MSP - GEG

The amount of carry on is put of control. We were in group 3 boarding and there was no room in upper storage for our 1 bag (between 2 people) Just because we can’t afford to up grade our seats… $2000 more. We get penaltized. Make us feel less than
American Airlines
7.2
Good
11,304 reviews
Delta
7.9
Good
8,207 reviews

Overall

7.9

Entertainment

7.8

Crew

8.5

Comfort

7.9

Food

7.2

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Peter,Oct 2023

MSP - GEG

The amount of carry on is put of control. We were in group 3 boarding and there was no room in upper storage for our 1 bag (between 2 people) Just because we can’t afford to up grade our seats… $2000 more. We get penaltized. Make us feel less than

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 United Airlines fly from Brownsville to Seattle in about 12h 59m. The time it takes to get you to your destination can typically vary by up to . The distance between Brownsville and Seattle is about 2010 mi.

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

    Delta, at $249, was found to be the cheapest airline from Brownsville to Seattle.Alternate airlines to your destination round-trip include American Airlines and United Airlines. Delta is currently priced 45% 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
Lynnwood
Edmonds
Lacey
Kent
Renton
Puyallup
Kirkland
Tukwila
Fife
Aberdeen
Shoreline
Marysville
Centralia
Federal Way
Chehalis

Browse thousands of different options on Cheapflights for your next trip

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See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Brownsville to Seattle

Discover the top 3 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 Februar 17, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$249Average$328FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$308Average$482FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$339Average$472FlexibilityNo cancel feeOn-time69%

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