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$149+ Cheap flights from Seattle to Brownsville (SEA - BRO)

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 9/16. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BRO
Jul 5 — Jul 121
Sat 7/5
Sat 7/12
1 adult, Economy
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Cheap flight deals from Seattle to Brownsville

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Brownsville (BRO). 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 June 30, 2025.

Round-trip from

$314
(American Airlines)

One-way from

$149
(American Airlines)

Popular in

October

Cheapest in

August

Average price

$566
From Seattle/Tacoma Intl to Brownsville South Padre Is. Intl
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One-way flight from Seattle/Tacoma Intl to Brownsville South Padre Is. Intl
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Highest demand for flights based on searches. 12% potential increase in price ($75 potential increase over avg. RT price).
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Cheapest flight prices on average. 8% potential price decrease ($39 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from Seattle to Brownsville

Cheapest flights from Seattle to Brownsville
Explore the most affordable flight options available from Seattle to Brownsville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 30, 2025.

This American Airlines deal was found by Cheapflights users on 6/29. 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 9/167:48 amSEA - BRO
1 stop8h 21mAmerican Airlines
Sat 9/205:26 amBRO - SEA
2 stops11h 08mAmerican Airlines
Deal found 6/29$314
This Alaska Airlines deal was found by Cheapflights users on 6/29. 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.
Mon 9/1512:58 amSEA - BRO
1 stop7h 13mAlaska Airlines
Sat 9/205:26 amBRO - SEA
1 stop8h 08mAlaska Airlines
Deal found 6/29$409
This United Airlines deal was found by Cheapflights users on 6/28. 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.
Thu 7/315:15 pmSEA - BRO
1 stop28h 17mUnited Airlines
Fri 8/85:10 amBRO - SEA
2 stops10h 36mUnited Airlines
Deal found 6/28$567

Cheapflights Fare Finder

Customize your flight search to find flights from Seattle to Brownsville 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 June 30, 2025.
Use the filters below to find and compare flights from Seattle to Brownsville that are best for you.

Fly from

Seattle

Fly to

Brownsville

Route

Depart

Return

Price

SeattleBrownsville

SEA - BRO

SEABRO

Seattle/Tacoma Intl

Tue 9/16

7:48 am-6:09 pm

1 stop8h 21m

Brownsville South Padre Is. Intl

Sat 9/20

5:26 am-2:34 pm

2 stops11h 08m

$314

SeattleBrownsville

SEA - BRO

SEABRO

Seattle/Tacoma Intl

Mon 9/15

12:58 am-10:11 am

1 stop7h 13m

Brownsville South Padre Is. Intl

Sat 9/20

5:26 am-11:34 am

1 stop8h 08m

$409

SeattleBrownsville

SEA - BRO

SEABRO

Seattle/Tacoma Intl

Thu 7/31

5:15 pm-11:32 pm

1 stop28h 17m

Brownsville South Padre Is. Intl

Fri 8/8

5:10 am-1:46 pm

2 stops10h 36m

$567

SeattleBrownsville

SEA - BRO

SEABRO

Seattle/Tacoma Intl

Tue 9/16

7:48 am-6:09 pm

1 stop8h 21m

$149

SeattleBrownsville

SEA - BRO

SEABRO

Seattle/Tacoma Intl

Mon 9/15

12:58 am-10:11 am

1 stop7h 13m

$199

SeattleBrownsville

SEA - BRO

SEABRO

Seattle/Tacoma Intl

Tue 9/16

6:30 am-11:21 am

3 stops26h 51m

$366

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

Best time to book a flight from Seattle to Brownsville

Have a flexible travel schedule? Discover the best time to fly to Brownsville from Seattle 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 Seattle to Brownsville

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

Currently, August is the cheapest month in which you can book a flight from Seattle to Brownsville (average of $328). Flying from Seattle to Brownsville in March is currently the most expensive (average of $471). 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.

What is the cheapest time of day to fly from SEA to BRO?

Find hourly flight availability from Seattle to Brownsville. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 30, 2025.

A simple way to save on the total cost of your ticket is to fly from Seattle to Brownsville at noon. If you’re flexible enough to do this you can expect to save up to 39% on your trip compared to booking a flight in the morning.

Reviews of airlines servicing Brownsville

Get insights into the airlines that provide service to Brownsville. 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 Brownsville. Reviews last updated June 30, 2025.
Get a feel of what it's like to fly with Alaska Airlines, United Airlines, and American Airlines from Seattle to Brownsville by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Crew

8.5

Entertainment

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Crew

8.5

Entertainment

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
United Airlines
7.4
Good
8,852 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Crew

8.5

Entertainment

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Crew

8.5

Entertainment

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥

Related info for your journey

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

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

    Cheapflights users have booked flights from Seattle to Brownsville round-trip from $314. Other airlines that can offer you cheap pricing are Alaska Airlines, from $409, and United Airlines, from $567. You may be able to fly from Seattle to Brownsville for 39% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Seattle to Brownsville one-way?

    $149 is the cheapest one-way deal found within the past few days, from American Airlines. You may also be able to find cheap deals on Alaska Airlines and United Airlines, with prices starting from $199 and $366, respectively.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Seattle to Brownsville 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 Seattle to Brownsville?

    Currently, August is the cheapest month in which you can book a flight from Seattle to Brownsville (average of $328). Flying from Seattle to Brownsville in March is currently the most expensive (average of $471). 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

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Top 2 airlines flying from Seattle to Brownsville

Discover the top 2 airlines that operate flights from Seattle to Brownsville. 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 June 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$256Average$456FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$282Average$522FlexibilityNo cancel feeOn-time69%

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