HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Belize

$160+ Cheap flights from Dulles Intl (IAD) 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 12/11. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — BZE
Aug 31 — Sep 71
Mon 8/31
Mon 9/7
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Dulles Intl to Belize with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Dulles Intl to Belize

Cheapest flights from Dulles Intl to Belize
Explore the most affordable flight options available from Dulles Intl to Belize. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 1, 2026.

This Copa Airlines deal was found by Cheapflights users on 7/29. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/31:16 am
IAD
-
BZE
1 stop10h 00m
Copa Airlines
Wed 11/1811:17 am
BZE
-
IAD
1 stop14h 58m
Copa Airlines
Deal found 7/29$403
This United Airlines deal was found by Cheapflights users on 7/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/236:30 am
IAD
-
BZE
1 stop9h 03m
United Airlines
Thu 8/272:35 pm
BZE
-
IAD
1 stop7h 55m
United Airlines
Deal found 7/29$405
This American Airlines deal was found by Cheapflights users on 7/27. 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.
Thu 8/206:38 pm
IAD
-
BZE
1 stop21h 48m
American Airlines
Wed 8/263:29 pm
BZE
-
IAD
2 stops19h 19m
American Airlines
Deal found 7/27$406
This American Airlines deal was found by Cheapflights users on 7/30. 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.
Mon 10/267:15 pm
IAD
-
BZE
2 stops19h 08m
American Airlines
Fri 10/301:23 pm
BZE
-
IAD
1 stop8h 00m
American Airlines
Deal found 7/30$410
This United Airlines deal was found by Cheapflights users on 7/27. 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.
Wed 9/3010:18 pm
IAD
-
BZE
1 stop14h 57m
United Airlines
Tue 10/612:20 pm
BZE
-
IAD
1 stop8h 10m
United Airlines
Deal found 7/27$415
This American Airlines deal was found by Cheapflights users on 7/30. 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 9/135:01 am
IAD
-
BZE
2 stops9h 21m
American Airlines
Sun 9/202:30 pm
BZE
-
IAD
2 stops17h 25m
American Airlines
Deal found 7/30$416
This Copa Airlines deal was found by Cheapflights users on 7/30. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/252:25 am
IAD
-
BZE
1 stop9h 56m
Copa Airlines
Fri 10/3011:23 am
BZE
-
IAD
1 stop14h 57m
Copa Airlines
Deal found 7/30$418
This American Airlines deal was found by Cheapflights users on 7/27. 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 9/126:14 pm
IAD
-
BZE
2 stops20h 08m
American Airlines
Tue 9/222:30 pm
BZE
-
IAD
2 stops21h 48m
American Airlines
Deal found 7/27$420
This American Airlines deal was found by Cheapflights users on 7/30. 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 10/145:01 am
IAD
-
BZE
2 stops9h 22m
American Airlines
Mon 10/191:23 pm
BZE
-
IAD
1 stop27h 00m
American Airlines
Deal found 7/30$425
This United Airlines deal was found by Cheapflights users on 7/31. 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.
Fri 8/286:30 am
IAD
-
BZE
1 stop6h 45m
United Airlines
Fri 9/42:35 pm
BZE
-
IAD
1 stop7h 55m
United Airlines
Deal found 7/31$430
This Copa Airlines deal was found by Cheapflights users on 7/30. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/132:25 am
IAD
-
BZE
1 stop10h 01m
Copa Airlines
Mon 10/1911:21 am
BZE
-
IAD
1 stop25h 43m
Copa Airlines
Deal found 7/30$432
This United Airlines deal was found by Cheapflights users on 8/1. 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.
Sun 8/236:30 am
IAD
-
BZE
1 stop6h 45m
United Airlines
Fri 8/282:35 pm
BZE
-
IAD
1 stop7h 55m
United Airlines
Deal found 8/1$433

Find flight deals from Dulles Intl to Belize

Keep the following information in mind while searching for Dulles Intl to Belize flight deals. Data was last updated August 1, 2026.

Round-trip from

$403
(Copa Airlines)

One-way from

$160
(United Airlines)

Popular in

July

Cheapest in

September

Average price

$480
From Washington, D.C. Dulles Intl to Belize
Search Deals
One-way flight from Washington, D.C. Dulles Intl to Belize
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($66 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl 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 August 1, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Belize that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Belize City

IAD - BZE

IADBZE

Washington, D.C. Dulles Intl

Sat 8/29

6:00 am-11:00 am

1 stop7h 00m

Belize City Philip S.W.Goldson

Wed 9/2

12:15 pm-12:34 am

1 stop10h 19m

$445

Washington, D.C.Belize City

IAD - BZE

IADBZE

Washington, D.C. Dulles Intl

Sat 10/17

6:15 am-11:15 am

1 stop7h 00m

Belize City Philip S.W.Goldson

Tue 10/27

12:20 pm-12:37 am

1 stop10h 17m

$448

Washington, D.C.Belize City

IAD - BZE

IADBZE

Washington, D.C. Dulles Intl

Thu 9/17

2:25 am-10:27 am

1 stop10h 02m

Belize City Philip S.W.Goldson

Wed 9/23

11:26 am-4:20 am

1 stop14h 54m

$452

Washington, D.C.Belize City

IAD - BZE

IADBZE

Washington, D.C. Dulles Intl

Fri 11/6

10:35 pm-12:32 pm

1 stop14h 57m

Belize City Philip S.W.Goldson

Wed 11/11

1:20 pm-10:44 pm

1 stop8h 24m

$475

Washington, D.C.Belize City

IAD - BZE

IADBZE

Washington, D.C. Dulles Intl

Tue 11/24

8:32 am-10:16 am

1 stop26h 44m

Belize City Philip S.W.Goldson

Fri 11/27

11:17 am-3:15 am

1 stop14h 58m

$476

Washington, D.C.Belize City

IAD - BZE

IADBZE

Washington, D.C. Dulles Intl

Tue 11/24

1:16 am-10:16 am

1 stop10h 00m

Belize City Philip S.W.Goldson

Mon 11/30

11:17 am-1:58 pm

1 stop25h 41m

$496

Washington, D.C.Belize City

IAD - BZE

IADBZE

Washington, D.C. Dulles Intl

Thu 8/20

3:02 pm-1:33 pm

1 stop24h 31m

Belize City Philip S.W.Goldson

Wed 8/26

12:20 pm-6:59 pm

1 stop28h 39m

$516

Washington, D.C.Belize City

IAD - BZE

IADBZE

Washington, D.C. Dulles Intl

Mon 8/24

10:29 pm-11:15 am

1 stop14h 46m

Belize City Philip S.W.Goldson

Fri 8/28

12:20 pm-10:45 pm

1 stop8h 25m

$525
Quickest round-trip

Washington, D.C.Belize City

IAD - BZE

IADBZE

Washington, D.C. Dulles Intl

Tue 8/25

8:31 am-1:33 pm

1 stop7h 02m

Belize City Philip S.W.Goldson

Tue 9/1

2:35 pm-11:55 pm

1 stop7h 20m

$525

Washington, D.C.Belize City

IAD - BZE

IADBZE

Washington, D.C. Dulles Intl

Thu 10/1

10:18 pm-11:15 am

1 stop14h 57m

Belize City Philip S.W.Goldson

Sun 10/11

12:20 pm-12:30 am

1 stop10h 10m

$525

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

Best time to book a flight from Dulles Intl to Belize

Have a flexible travel schedule? Discover the best time to fly to Belize from Dulles Intl 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 Washington, D.C. Dulles Intl Airport to Belize

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Belize?

Currently, November is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Belize (average of $353). Flying from Washington, D.C. Dulles Intl Airport to Belize in March is currently the most expensive (average of $615). 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 Washington, D.C. Dulles Intl Airport to Belize?

The price you pay for your flight from Washington, D.C. Dulles Intl Airport to Belize may vary depending on when you book. For the best chance of a lower fare, look to book 26 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 August 1, 2026.
Peruse reviews from past customers who have flown with Delta,United Airlines, andAmerican Airlines from Washington, D.C. Dulles Intl Airport to Belize to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.8
Good
8,497 reviews

Food

7.2

Boarding

8.1

Overall

7.8

Entertainment

7.8

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
Delta
7.8
Good
8,497 reviews
Delta
7.8
Good
8,497 reviews

Food

7.2

Boarding

8.1

Overall

7.8

Entertainment

7.8

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
United Airlines
7.4
Good
10,062 reviews
Delta
7.8
Good
8,497 reviews

Food

7.2

Boarding

8.1

Overall

7.8

Entertainment

7.8

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
American Airlines
7.1
Good
11,845 reviews
Delta
7.8
Good
8,497 reviews

Food

7.2

Boarding

8.1

Overall

7.8

Entertainment

7.8

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

Related info for your journey

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

  • How long is the flight from Washington, D.C. Dulles Intl Airport to Belize?

    Delta, United Airlines, and Copa Airlines can get you from Washington, D.C. Dulles Intl Airport to Belize in just under 7h. Your travel time can differ by up to 3h 02m. The distance between Washington, D.C. Dulles Intl Airport and Belize is about 1616 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the most popular routes from Washington, D.C. Dulles Intl Airport to Belize?

    While some choose either Washington, D.C. Dulles Intl - Belmopan or Washington, D.C. Dulles Intl - Placencia, Washington, D.C. Dulles Intl - Belize City Philip S.W.Goldson is the most popular route from Washington, D.C. Dulles Intl Airport to Belize.

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

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

  • How can I find direct flights from Dulles Intl to Belize?

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

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

    Yes. Cheapflights offers flight deals from Dulles Intl 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 Washington, D.C. Dulles Intl Airport to Belize?

    Currently, November is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Belize (average of $353). Flying from Washington, D.C. Dulles Intl Airport to Belize in March is currently the most expensive (average of $615). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 3 airlines flying from Dulles Intl to Belize

Discover the top 3 airlines that operate flights from Dulles Intl 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 August 1, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$284Average$488FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$290Average$485FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$330Average$530FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.