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Cheap flights from Seattle to Brownsville from $265

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Brownsville departing on 12/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Seattle to Brownsville

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
7:00 am - 6:02 pm
SEA
-
BRO
9h 02m1 stop
United Airlines Logo
5:25 pm - 10:59 pm
BRO
-
SEA
7h 34m1 stop
$309United Airlines
mar., ene. 6 - mar., ene. 20
United Airlines Logo
12:57 pm - 9:31 pm
SEA
-
BRO
6h 34m1 stop
United Airlines Logo
12:13 pm - 12:59 am
BRO
-
SEA
14h 46m2 stops
$314United Airlines
mar., ene. 6 - mar., ene. 20
American Airlines Logo
11:25 am - 11:33 pm
SEA
-
BRO
10h 08m2 stops
American Airlines Logo
6:00 am - 1:49 pm
BRO
-
SEA
9h 49m2 stops
$319American Airlines
mié., ene. 21 - sáb., ene. 24
United Airlines Logo
5:00 am - 6:02 pm
SEA
-
BRO
11h 02m2 stops
United Airlines Logo
12:13 pm - 9:12 pm
BRO
-
SEA
10h 59m2 stops
$333United Airlines
mar., ene. 6 - mar., ene. 20
American Airlines Logo
11:59 pm - 10:13 am
SEA
-
BRO
8h 14m1 stop
American Airlines Logo
5:40 am - 11:00 am
BRO
-
SEA
7h 20m1 stop
$349American Airlines
lun., mar. 2 - mié., mar. 4
American Airlines Logo
11:55 am - 11:33 pm
SEA
-
BRO
9h 38m1 stop
American Airlines Logo
6:00 am - 1:49 pm
BRO
-
SEA
9h 49m2 stops
$354American Airlines
mié., ene. 21 - sáb., ene. 24
American Airlines Logo
10:00 am - 11:33 pm
SEA
-
BRO
11h 33m2 stops
American Airlines Logo
6:00 am - 1:49 pm
BRO
-
SEA
9h 49m2 stops
$359American Airlines
mié., ene. 21 - sáb., ene. 24
United Airlines Logo
5:00 am - 4:07 pm
SEA
-
BRO
9h 07m1 stop
United Airlines Logo
12:13 pm - 9:12 pm
BRO
-
SEA
10h 59m2 stops
$375United Airlines
lun., ene. 5 - lun., ene. 12
Alaska Airlines Logo
8:23 am - 6:19 pm
SEA
-
BRO
7h 56m1 stop
Alaska Airlines Logo
6:00 am - 12:39 pm
BRO
-
SEA
8h 39m1 stop
$409Alaska Airlines
mié., ene. 28 - sáb., ene. 31
United Airlines Logo
7:00 am - 6:02 pm
SEA
-
BRO
9h 02m1 stop
United Airlines Logo
12:13 pm - 9:15 pm
BRO
-
SEA
11h 02m2 stops
$414United Airlines
mié., ene. 28 - sáb., ene. 31

United Airlines flights from Seattle to Brownsville

Our best United Airlines deals on Seattle to Brownsville flight tickets
United Airlines
Jan 6
SEA7:00 amSeattle/Tacoma Intl
9h 02m
1 stop
BRO6:02 pmBrownsville South Padre Is. Intl
Jan 20
BRO5:25 pmBrownsville South Padre Is. Intl
7h 34m
1 stop
SEA10:59 pmSeattle/Tacoma Intl
$309
Find similar
United Airlines
Jan 6
SEA12:57 pmSeattle/Tacoma Intl
6h 34m
1 stop
BRO9:31 pmBrownsville South Padre Is. Intl
Jan 20
BRO12:13 pmBrownsville South Padre Is. Intl
14h 46m
2 stops
SEA12:59 amSeattle/Tacoma Intl
$314
Find similar
United Airlines
Jan 6
SEA5:00 amSeattle/Tacoma Intl
11h 02m
2 stops
BRO6:02 pmBrownsville South Padre Is. Intl
Jan 20
BRO12:13 pmBrownsville South Padre Is. Intl
10h 59m
2 stops
SEA9:12 pmSeattle/Tacoma Intl
$333
Find similar

American Airlines flights from Seattle to Brownsville

Our best American Airlines deals on Seattle to Brownsville flight tickets
American Airlines
Jan 21
SEA11:25 amSeattle/Tacoma Intl
10h 08m
2 stops
BRO11:33 pmBrownsville South Padre Is. Intl
Jan 24
BRO6:00 amBrownsville South Padre Is. Intl
9h 49m
2 stops
SEA1:49 pmSeattle/Tacoma Intl
$319
Find similar
American Airlines
Mar 2
SEA11:59 pmSeattle/Tacoma Intl
8h 14m
1 stop
BRO10:13 amBrownsville South Padre Is. Intl
Mar 4
BRO5:40 amBrownsville South Padre Is. Intl
7h 20m
1 stop
SEA11:00 amSeattle/Tacoma Intl
$349
Find similar
American Airlines
Jan 21
SEA11:55 amSeattle/Tacoma Intl
9h 38m
1 stop
BRO11:33 pmBrownsville South Padre Is. Intl
Jan 24
BRO6:00 amBrownsville South Padre Is. Intl
9h 49m
2 stops
SEA1:49 pmSeattle/Tacoma Intl
$354
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated diciembre 11, 2025.
Use the filters below to find and compare flights from Seattle to Brownsville that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleBrownsville

SEA - BRO

SEABRO

Seattle/Tacoma Intl

mar. 1/6

7:00 am-6:02 pm

1 stop9h 02m

Brownsville South Padre Is. Intl

mar. 1/20

5:25 pm-10:59 pm

1 stop7h 34m

$309

SeattleBrownsville

SEA - BRO

SEABRO

Seattle/Tacoma Intl

mar. 1/6

12:57 pm-9:31 pm

1 stop6h 34m

Brownsville South Padre Is. Intl

mar. 1/20

12:13 pm-12:59 am

2 stops14h 46m

$314

SeattleBrownsville

SEA - BRO

SEABRO

Seattle/Tacoma Intl

mié. 1/21

11:25 am-11:33 pm

2 stops10h 08m

Brownsville South Padre Is. Intl

sáb. 1/24

6:00 am-1:49 pm

2 stops9h 49m

$319

SeattleBrownsville

SEA - BRO

SEABRO

Seattle/Tacoma Intl

mar. 1/6

5:00 am-6:02 pm

2 stops11h 02m

Brownsville South Padre Is. Intl

mar. 1/20

12:13 pm-9:12 pm

2 stops10h 59m

$333

SeattleBrownsville

SEA - BRO

SEABRO

Seattle/Tacoma Intl

lun. 3/2

11:59 pm-10:13 am

1 stop8h 14m

Brownsville South Padre Is. Intl

mié. 3/4

5:40 am-11:00 am

1 stop7h 20m

$349

SeattleBrownsville

SEA - BRO

SEABRO

Seattle/Tacoma Intl

mié. 1/21

11:55 am-11:33 pm

1 stop9h 38m

Brownsville South Padre Is. Intl

sáb. 1/24

6:00 am-1:49 pm

2 stops9h 49m

$354

SeattleBrownsville

SEA - BRO

SEABRO

Seattle/Tacoma Intl

mié. 1/21

10:00 am-11:33 pm

2 stops11h 33m

Brownsville South Padre Is. Intl

sáb. 1/24

6:00 am-1:49 pm

2 stops9h 49m

$359

SeattleBrownsville

SEA - BRO

SEABRO

Seattle/Tacoma Intl

lun. 1/5

5:00 am-4:07 pm

1 stop9h 07m

Brownsville South Padre Is. Intl

lun. 1/12

12:13 pm-9:12 pm

2 stops10h 59m

$375

SeattleBrownsville

SEA - BRO

SEABRO

Seattle/Tacoma Intl

mié. 1/28

8:23 am-6:19 pm

1 stop7h 56m

Brownsville South Padre Is. Intl

sáb. 1/31

6:00 am-12:39 pm

1 stop8h 39m

$409

SeattleBrownsville

SEA - BRO

SEABRO

Seattle/Tacoma Intl

mié. 1/28

7:00 am-6:02 pm

1 stop9h 02m

Brownsville South Padre Is. Intl

sáb. 1/31

12:13 pm-9:15 pm

2 stops11h 02m

$414

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
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See travel insights to Brownsville from

How to get the cheapest flight ticket from Seattle to Brownsville

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Brownsville?

The month of November is another great option to travel to Brownsville, with average flight prices from Seattle averaging around $386.

What is the cheapest day to depart on your flight to Brownsville?

The cheapest day to depart from Seattle to Brownsville is on a Thursday. Travelers who choose to depart for Brownsville on a Thursday will often find tickets for as low as $386. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to Brownsville on Monday is $627.

What is the cheapest time of day to depart on your flight to Brownsville?

Flying to Brownsville from Seattle at noon is the least expensive time of day to depart. momondo users have found prices as low as $326 when looking at flights departing at noon. Flights to Brownsville are more costly in the morning, with an average ticket price of $534. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

When to book flights from Seattle to Brownsville

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Brownsville according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Seattle to Brownsville (SEA to BRO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Brownsville

Fastest flight time

6h 34m

Direct flights

None
The fastest flight from Seattle to Brownsville takes 6h 34m
There are no direct flights from Seattle to Brownsville. There are no popular flight routes from Seattle to Brownsville.
Search flight deals

  • How far is Seattle/Tacoma Intl to Brownsville South Padre Is. Intl by plane?

    Seattle/Tacoma Intl and Brownsville South Padre Is. Intl are 2015.9 mi apart from one another. Flights usually cover this in 6h 34m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Brownsville South Padre Is. Intl Airport?

    Prices for flights from Seattle/Tacoma Intl Airport to Brownsville South Padre Is. Intl Airport refresh daily.

  • How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Brownsville South Padre Is. Intl Airport?

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Brownsville South Padre Is. Intl Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Seattle/Tacoma Intl Airport to Brownsville South Padre Is. Intl Airport.

  • What documentation or ID do you need to fly to Brownsville South Padre Is. Intl Airport?

    The travel and health documents required for your trip to Brownsville South Padre Is. Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Brownsville South Padre Is. Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Seattle to Brownsville?

Best airlines flying from Seattle to Brownsville

Compare and see reviews for airlines that fly from Seattle to Brownsville with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $266Free CancellationRating
7.2
11,050 reviews
Search American Airlines flights
United AirlinesPriceFrom $282Free CancellationRating
7.4
9,095 reviews
Search United Airlines flights

Traveling to a place near Brownsville?

Book flights to Brownsville if you plan to visit one of these locations
South Padre Island

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Brownsville?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Seattle to Brownsville. momondo saves you time and could save you money on your trip.

Can I find flights from Seattle to Brownsville with flexible booking policies on momondo?

momondo does allow users to show only those flights to Brownsville from Seattle which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Seattle to Brownsville?

momondo helps you find the best flight between Seattle and Brownsville by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Seattle to Brownsville right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Brownsville, momondo offers a useful price alert feature which will track prices for flights to Brownsville from Seattle and alert you when they change.

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