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$184+ 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 4/20. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BZE
Apr 28 — May 51
Tue 4/28
Tue 5/5
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 March 29, 2026.

This Alaska Airlines deal was found by Cheapflights users on 3/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/28:20 am
SEA
-
BZE
Nonstop6h 15m
Alaska Airlines
Sun 5/109:00 am
BZE
-
SEA
Nonstop6h 52m
Alaska Airlines
Deal found 3/28$499
This United Airlines deal was found by Cheapflights users on 3/27. 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 4/1811:35 pm
SEA
-
BZE
1 stop10h 40m
United Airlines
Thu 4/2312:20 pm
BZE
-
SEA
1 stop11h 52m
United Airlines
Deal found 3/27$513
This American Airlines deal was found by Cheapflights users on 3/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/1910:29 pm
SEA
-
BZE
2 stops11h 36m
American Airlines
Sat 4/253:31 pm
BZE
-
SEA
2 stops19h 04m
American Airlines
Deal found 3/28$516
This American Airlines deal was found by Cheapflights users on 3/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2810:16 pm
SEA
-
BZE
1 stop13h 46m
American Airlines
Sun 5/101:52 pm
BZE
-
SEA
1 stop10h 52m
American Airlines
Deal found 3/28$517
This American Airlines deal was found by Cheapflights users on 3/27. 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 4/2511:33 pm
SEA
-
BZE
2 stops13h 57m
American Airlines
Thu 5/73:31 pm
BZE
-
SEA
2 stops20h 17m
American Airlines
Deal found 3/27$518
This American Airlines deal was found by Cheapflights users on 3/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/211:33 pm
SEA
-
BZE
2 stops13h 57m
American Airlines
Sun 5/101:52 pm
BZE
-
SEA
1 stop10h 52m
American Airlines
Deal found 3/28$523
This American Airlines deal was found by Cheapflights users on 3/26. 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 4/2411:55 pm
SEA
-
BZE
1 stop13h 35m
American Airlines
Fri 5/112:14 pm
BZE
-
SEA
1 stop22h 21m
American Airlines
Deal found 3/26$526
This American Airlines deal was found by Cheapflights users on 3/26. 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.
Thu 5/1410:16 pm
SEA
-
BZE
1 stop13h 46m
American Airlines
Thu 5/2111:28 am
BZE
-
SEA
1 stop25h 29m
American Airlines
Deal found 3/26$529
This American Airlines deal was found by Cheapflights users on 3/27. 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 4/2411:33 pm
SEA
-
BZE
2 stops12h 06m
American Airlines
Sat 5/21:39 pm
BZE
-
SEA
1 stop20h 56m
American Airlines
Deal found 3/27$531
This American Airlines deal was found by Cheapflights users on 3/27. 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 4/1811:33 pm
SEA
-
BZE
2 stops12h 29m
American Airlines
Sat 4/253:31 pm
BZE
-
SEA
2 stops19h 04m
American Airlines
Deal found 3/27$534
This United Airlines deal was found by Cheapflights users on 3/25. 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 5/97:36 pm
SEA
-
BZE
2 stops14h 39m
United Airlines
Sat 5/1612:20 pm
BZE
-
SEA
2 stops13h 52m
United Airlines
Deal found 3/25$537

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 March 29, 2026.

Round-trip from

$499
(Alaska Airlines)

One-way from

$184
(Southwest)

Popular in

December

Cheapest in

July

Average price

$594

Good round-trip deal

$378 or less

Good one-way deal

$260 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. 8% potential increase in price ($58 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($26 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals
Price to beat on a round-trip flight from Seattle/Tacoma Intl to Belize.
Search Deals
Price to beat on a one-way 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 March 29, 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

Sat 4/18

11:35 pm-11:15 am

1 stop10h 40m

Belize City Philip S.W.Goldson

Thu 4/23

12:20 pm-11:12 pm

1 stop11h 52m

$513

SeattleBelize City

SEA - BZE

SEABZE

Seattle/Tacoma Intl

Fri 4/24

7:05 pm-1:58 pm

1 stop17h 53m

Belize City Philip S.W.Goldson

Fri 5/1

12:20 pm-10:52 pm

1 stop11h 32m

$513
Quickest round-trip

SeattleBelize City

SEA - BZE

SEABZE

Seattle/Tacoma Intl

Sat 5/2

8:20 am-3:35 pm

Nonstop6h 15m

Belize City Philip S.W.Goldson

Sat 5/9

10:00 am-8:50 pm

1 stop11h 50m

$595

SeattleBelize City

SEA - BZE

SEABZE

Seattle/Tacoma Intl

Sun 4/19

11:35 pm-11:15 am

1 stop10h 40m

Belize City Philip S.W.Goldson

Fri 4/24

12:20 pm-11:12 pm

1 stop11h 52m

$622

SeattleBelize City

SEA - BZE

SEABZE

Seattle/Tacoma Intl

Sun 4/19

11:35 pm-11:15 am

1 stop10h 40m

Belize City Philip S.W.Goldson

Wed 4/22

12:20 pm-11:12 pm

1 stop11h 52m

$622

SeattleBelize City

SEA - BZE

SEABZE

Seattle/Tacoma Intl

Mon 4/20

3:48 pm-11:15 am

2 stops18h 27m

Belize City Philip S.W.Goldson

Sat 4/25

9:30 am-8:57 pm

1 stop12h 27m

$622

SeattleBelize City

SEA - BZE

SEABZE

Seattle/Tacoma Intl

Mon 5/4

4:32 pm-11:15 am

2 stops17h 43m

Belize City Philip S.W.Goldson

Fri 5/8

12:20 pm-10:52 pm

1 stop11h 32m

$628

SeattleBelize City

SEA - BZE

SEABZE

Seattle/Tacoma Intl

Tue 5/5

5:02 am-11:15 am

2 stops29h 13m

Belize City Philip S.W.Goldson

Thu 5/7

12:20 pm-10:52 pm

1 stop11h 32m

$638

SeattleBelize City

SEA - BZE

SEABZE

Seattle/Tacoma Intl

Thu 9/10

7:35 pm-11:15 am

2 stops14h 40m

Belize City Philip S.W.Goldson

Sun 9/20

12:20 pm-11:11 pm

2 stops11h 51m

$640
Cheapest one-way

SeattleBelize City

SEA - BZE

SEABZE

Seattle/Tacoma Intl

Sun 5/17

10:47 pm-1:02 pm

2 stops13h 15m

$214

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/28

Showing 1-10 of 19 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, October is the cheapest month in which you can book a flight from Seattle to Belize (average of $167). Flying from Seattle to Belize in June is currently the most expensive (average of $543). 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 BZ?

Find hourly flight availability from Seattle to Belize. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 29, 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seattle to Belize as you normally would.

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 March 29, 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
12,140 reviews

Food

7.0

Comfort

7.8

Boarding

8.1

Overall

7.9

Entertainment

7.0

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Alaska Airlines
7.9
Good
12,140 reviews
Alaska Airlines
7.9
Good
12,140 reviews

Food

7.0

Comfort

7.8

Boarding

8.1

Overall

7.9

Entertainment

7.0

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Delta
7.9
Good
8,358 reviews
Alaska Airlines
7.9
Good
12,140 reviews

Food

7.0

Comfort

7.8

Boarding

8.1

Overall

7.9

Entertainment

7.0

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
United Airlines
7.4
Good
9,514 reviews
Alaska Airlines
7.9
Good
12,140 reviews

Food

7.0

Comfort

7.8

Boarding

8.1

Overall

7.9

Entertainment

7.0

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
American Airlines
7.1
Good
11,531 reviews
Alaska Airlines
7.9
Good
12,140 reviews

Food

7.0

Comfort

7.8

Boarding

8.1

Overall

7.9

Entertainment

7.0

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.

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 6h 15m. United Airlines provides one of the quickest options available for as low as $595. 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 ($142), 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 $625, our data indicates the cheapest price to be $260. The most popular route (Seattle/Tacoma Intl - Belize City Philip S.W.Goldson), is priced around $513.

  • 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, October is the cheapest month in which you can book a flight from Seattle to Belize (average of $167). Flying from Seattle to Belize in June is currently the most expensive (average of $543). 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 March 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$139Average$563FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$363Average$589FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$370Average$617FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$411Average$588FlexibilityNo cancel feeOn-time75%

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