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$256+ Cheap flights from Seattle (SEA) to Belize

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 8/31. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BZE
Aug 8 — Aug 151
Sat 8/8
Sat 8/15
1 adult, Economy
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Cheap flight deals from Seattle to Belize

Cheapest flights from Seattle to Belize
Explore the most affordable flight options available from Seattle to Belize. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 9, 2026.

This American Airlines deal was found by Cheapflights users on 7/7. 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 11/112:59 am
SEA
-
BZE
1 stop12h 05m
American Airlines
Thu 11/121:12 pm
BZE
-
SEA
1 stop10h 06m
American Airlines
Deal found 7/7$481
This American Airlines deal was found by Cheapflights users on 7/8. 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.
Wed 8/195:00 am
SEA
-
BZE
1 stop8h 26m
American Airlines
Wed 8/263:29 pm
BZE
-
SEA
2 stops18h 56m
American Airlines
Deal found 7/8$491
This American Airlines deal was found by Cheapflights users on 7/8. 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.
Tue 10/205:38 pm
SEA
-
BZE
2 stops17h 45m
American Airlines
Fri 10/302:56 pm
BZE
-
SEA
2 stops19h 37m
American Airlines
Deal found 7/8$544
This American Airlines deal was found by Cheapflights users on 7/9. 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.
Sat 8/2911:16 pm
SEA
-
BZE
1 stop14h 10m
American Airlines
Sat 9/51:32 pm
BZE
-
SEA
1 stop9h 47m
American Airlines
Deal found 7/9$558
This American Airlines deal was found by Cheapflights users on 7/7. 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 11/311:59 pm
SEA
-
BZE
1 stop13h 05m
American Airlines
Thu 12/102:36 pm
BZE
-
SEA
1 stop10h 40m
American Airlines
Deal found 7/7$561
This American Airlines deal was found by Cheapflights users on 7/7. 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 11/35:24 am
SEA
-
BZE
1 stop7h 40m
American Airlines
Fri 12/42:36 pm
BZE
-
SEA
2 stops21h 06m
American Airlines
Deal found 7/7$566
This American Airlines deal was found by Cheapflights users on 7/9. 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.
Sat 9/1911:57 pm
SEA
-
BZE
2 stops11h 25m
American Airlines
Sun 9/272:30 pm
BZE
-
SEA
2 stops21h 55m
American Airlines
Deal found 7/9$568
This American Airlines deal was found by Cheapflights users on 7/7. 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.
Wed 11/45:24 am
SEA
-
BZE
1 stop7h 40m
American Airlines
Wed 12/94:20 pm
BZE
-
SEA
2 stops19h 22m
American Airlines
Deal found 7/7$571
This American Airlines deal was found by Cheapflights users on 7/7. 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.
Fri 11/63:51 pm
SEA
-
BZE
1 stop21h 13m
American Airlines
Fri 12/112:36 pm
BZE
-
SEA
1 stop10h 40m
American Airlines
Deal found 7/7$574

Find flight deals from Seattle to Belize

Keep the following information in mind while searching for Seattle to Belize flight deals. Data was last updated July 9, 2026.

Round-trip from

$481
(American Airlines)

One-way from

$256
(United Airlines)

Popular in

December

Cheapest in

October

Average price

$548

Good round-trip deal

$660 or less
From Seattle/Tacoma Intl to Belize
Search Deals
One-way flight from Seattle/Tacoma Intl to Belize
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($77 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($25 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a round-trip flight from Seattle/Tacoma Intl to Belize.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Belize 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 July 9, 2026.
Use the filters below to find and compare flights from Seattle to Belize that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleBelize City

SEA - BZE

SEABZE

Seattle/Tacoma Intl

Sun 10/11

11:59 pm-11:42 am

1 stop10h 43m

Belize City Philip S.W.Goldson

Sun 10/18

12:57 pm-10:03 pm

1 stop10h 06m

$616

SeattleBelize City

SEA - BZE

SEABZE

Seattle/Tacoma Intl

Sat 1/2

9:07 pm-5:14 pm

1 stop18h 07m

Belize City Philip S.W.Goldson

Sat 1/9

11:00 am-3:49 pm

Nonstop6h 49m

$665

SeattleBelize City

SEA - BZE

SEABZE

Seattle/Tacoma Intl

Sat 9/5

11:59 pm-1:33 pm

1 stop12h 34m

Belize City Philip S.W.Goldson

Sun 9/13

12:20 pm-9:38 pm

1 stop10h 18m

$671
Quickest round-trip

SeattleBelize City

SEA - BZE

SEABZE

Seattle/Tacoma Intl

Fri 11/13

6:00 am-6:45 pm

1 stop10h 45m

Belize City Philip S.W.Goldson

Tue 11/24

10:00 am-5:57 pm

1 stop9h 57m

$675

SeattleBelize City

SEA - BZE

SEABZE

Seattle/Tacoma Intl

Sun 8/16

11:59 pm-11:15 am

1 stop10h 16m

Belize City Philip S.W.Goldson

Sun 8/23

2:35 pm-9:59 am

2 stops20h 24m

$691

SeattleBelize City

SEA - BZE

SEABZE

Seattle/Tacoma Intl

Mon 11/2

6:15 pm-12:14 pm

2 stops15h 59m

Belize City Philip S.W.Goldson

Wed 11/4

1:20 pm-10:55 pm

1 stop11h 35m

$722

SeattleBelize City

SEA - BZE

SEABZE

Seattle/Tacoma Intl

Sun 11/15

11:59 pm-2:36 pm

1 stop12h 37m

Belize City Philip S.W.Goldson

Sat 12/5

1:45 pm-12:33 am

2 stops12h 48m

$728

SeattleBelize City

SEA - BZE

SEABZE

Seattle/Tacoma Intl

Mon 9/14

11:59 pm-11:15 am

1 stop10h 16m

Belize City Philip S.W.Goldson

Mon 9/28

12:20 pm-10:45 pm

1 stop11h 25m

$736

SeattleBelize City

SEA - BZE

SEABZE

Seattle/Tacoma Intl

Thu 8/20

7:35 pm-1:33 pm

2 stops16h 58m

Belize City Philip S.W.Goldson

Thu 8/27

12:20 pm-9:36 pm

1 stop10h 16m

$741
Cheapest one-way

SeattleBelize City

SEA - BZE

SEABZE

Seattle/Tacoma Intl

Mon 8/31

6:30 pm-11:15 am

2 stops15h 45m

$256

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/4

Showing 1-10 of 15 resultsSorted by cheapest first
1
2

Best time to book a flight from Seattle to Belize

Have a flexible travel schedule? Discover the best time to fly to Belize 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 Belize

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

Currently, February is the cheapest month in which you can book a flight from Seattle to Belize (average of $139). Flying from Seattle to Belize in June is currently the most expensive (average of $544). 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.

How far ahead should I book a flight from Seattle to Belize?

To ensure you get the cheapest price possible for a flight from Seattle to Belize, you should look to book at least 77 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

Reviews of airlines servicing Belize

Get insights into the airlines that provide service to Belize. 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 Belize. Reviews last updated July 9, 2026.
Read through reviews of airlines operating flights from Seattle to Belize, such as Alaska Airlines,Delta, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
7.9
Good
12,641 reviews

Boarding

8.1

Food

7.0

Entertainment

7.0

Comfort

7.8

Overall

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Anonymous,Jul 2026

SEA - LHR

Alaska has a brilliant crew. And the seats are good. As much as i loved my trip from Heathrow to Seattle, i definitely did not feel the same on the return flight. A lot was due to feeling very cramped and unfortunately for me, i had a kicker behind me and a passenger who did not stop moving (but constantly) next to me. The good was not good and i noticed that most people around me left most of their meal. The ice cream was very nice. I did not have breakfast. However the food was very nice on the way to Seattle
Alaska Airlines
7.9
Good
12,641 reviews
Alaska Airlines
7.9
Good
12,641 reviews

Boarding

8.1

Food

7.0

Entertainment

7.0

Comfort

7.8

Overall

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Anonymous,Jul 2026

SEA - LHR

Alaska has a brilliant crew. And the seats are good. As much as i loved my trip from Heathrow to Seattle, i definitely did not feel the same on the return flight. A lot was due to feeling very cramped and unfortunately for me, i had a kicker behind me and a passenger who did not stop moving (but constantly) next to me. The good was not good and i noticed that most people around me left most of their meal. The ice cream was very nice. I did not have breakfast. However the food was very nice on the way to Seattle
Delta
7.8
Good
8,450 reviews
Alaska Airlines
7.9
Good
12,641 reviews

Boarding

8.1

Food

7.0

Entertainment

7.0

Comfort

7.8

Overall

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Anonymous,Jul 2026

SEA - LHR

Alaska has a brilliant crew. And the seats are good. As much as i loved my trip from Heathrow to Seattle, i definitely did not feel the same on the return flight. A lot was due to feeling very cramped and unfortunately for me, i had a kicker behind me and a passenger who did not stop moving (but constantly) next to me. The good was not good and i noticed that most people around me left most of their meal. The ice cream was very nice. I did not have breakfast. However the food was very nice on the way to Seattle
United Airlines
7.4
Good
9,953 reviews
Alaska Airlines
7.9
Good
12,641 reviews

Boarding

8.1

Food

7.0

Entertainment

7.0

Comfort

7.8

Overall

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Anonymous,Jul 2026

SEA - LHR

Alaska has a brilliant crew. And the seats are good. As much as i loved my trip from Heathrow to Seattle, i definitely did not feel the same on the return flight. A lot was due to feeling very cramped and unfortunately for me, i had a kicker behind me and a passenger who did not stop moving (but constantly) next to me. The good was not good and i noticed that most people around me left most of their meal. The ice cream was very nice. I did not have breakfast. However the food was very nice on the way to Seattle
American Airlines
7.1
Good
11,790 reviews
Alaska Airlines
7.9
Good
12,641 reviews

Boarding

8.1

Food

7.0

Entertainment

7.0

Comfort

7.8

Overall

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Anonymous,Jul 2026

SEA - LHR

Alaska has a brilliant crew. And the seats are good. As much as i loved my trip from Heathrow to Seattle, i definitely did not feel the same on the return flight. A lot was due to feeling very cramped and unfortunately for me, i had a kicker behind me and a passenger who did not stop moving (but constantly) next to me. The good was not good and i noticed that most people around me left most of their meal. The ice cream was very nice. I did not have breakfast. However the food was very nice on the way to Seattle

Related info for your journey

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

  • What airport do you fly from for flights from Seattle to Belize?

    Seattle/Tacoma Intl (SEA), located 11.4 mi from the city center, is the airport you fly out of when you book flights from Seattle to Belize.

  • How long is the flight from Seattle to Belize?

    A quick flight from Seattle to Belize can take about 10h 43m. Delta provides one of the quickest options available for as low as $616. Airlines will cover a distance of 2820 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    The cheapest airlines for a one-way flight from Seattle to Belize are American Airlines ($130), United Airlines ($153), and Alaska Airlines ($164).

  • What are the cheapest flights from Seattle to Belize?

    Looking for the cheapest flight from Seattle to Belize? While on average our users pay $879, our data indicates the cheapest price to be $660. The most popular route (Seattle/Tacoma Intl - Belize City Philip S.W.Goldson), is priced around $499.

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

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from Seattle to Belize (average of $139). Flying from Seattle to Belize in June is currently the most expensive (average of $544). 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 4 airlines flying from Seattle to Belize

Discover the top 4 airlines that operate flights from Seattle to Belize. 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 July 9, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$139Average$363FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$363Average$643FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$364Average$635FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$403Average$596FlexibilityNo cancel feeOn-time75%

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