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Cheap flights from Seattle to Belize City

SEA — TZA
1 Nov — 8 Nov1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Seattle to Belize City

Popular in

April

Cheapest in

May

Average price

C$ 948
High demand for flights, 6% potential price rise
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Cheapest flight prices on average. 1% potential price decrease (C$ 18 potential savings vs. average RT price).
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Average for round-trip flights in October 2026
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Best time to book a flight from Seattle to Belize City

Have a flexible travel schedule? Discover the best time to fly to Belize City from Seattle with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

Everything you need to know about your flight from Seattle to Belize City

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

The best time to book flights from Seattle to Belize City is 65 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, May is the cheapest month in which you can book a flight from Seattle to Belize City (average of C$ 730). Flying from Seattle to Belize City in April is currently the most expensive (average of C$ 1,079). 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 Belize City

Read through reviews of airlines operating flights from Seattle to Belize City, such as Alaska Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
7.9
Good
13,004 reviews
Check prices

Crew

8.5

Boarding

8.1

Comfort

7.8

Overall

7.9

Food

7.0

Entertainment

7.0

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
13,004 reviews
Alaska Airlines
7.9
Good
13,004 reviews
Check prices

Crew

8.5

Boarding

8.1

Comfort

7.8

Overall

7.9

Food

7.0

Entertainment

7.0

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

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

    Seattle/Tacoma Intl (SEA) is the airport you will fly out of if you book a flight from Seattle to Belize City. You should not have trouble finding flights to Belize City from Seattle/Tacoma Intl; the airport handles an average of 0 outbound flights to Belize City per day. You should also have plenty of airline options to choose from since 1 airline has flights from the Seattle airport to Belize City. It is only a 18.4 km journey to Seattle/Tacoma Intl (SEA) from Seattle’s city centre.

  • What is the cheapest airline to fly from Seattle to Belize City round-trip?

    Currently priced at C$ 710, Alaska Airlines will fly you from Seattle to Belize City and back. In addition to Alaska Airlines, many other airlines offer competitively priced options for your trip. Alaska Airlines is currently priced 25% below the average price you’ll pay for this route.

  • What are the cheapest flights from Seattle to Belize City?

    Looking for the cheapest flight from Seattle to Belize City? While on average our users pay C$ 427, our data indicates the cheapest price to be C$ 427. The most popular route (Seattle/Tacoma Intl - Belize City Philip S.W.Goldson), is priced around C$ 964.

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

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

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

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

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

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

    Currently, May is the cheapest month in which you can book a flight from Seattle to Belize City (average of C$ 730). Flying from Seattle to Belize City in April is currently the most expensive (average of C$ 1,079). 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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Alternative routes for Seattle to Belize City

Seattle to Philip S.W.Goldson flights

Top airline flying from Seattle to Belize City

AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapestC$ 710AverageC$ 895FlexibilityNo cancel feeOn-time75%
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