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Tongatapu

$768+ Cheap flights from Dulles Intl (IAD) to Tongatapu

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 4/1. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — TBU
Mar 22 — Mar 291
Sun 3/22
Sun 3/29
1 adult, Economy
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Cheap flight deals from Dulles Intl to Tongatapu

Cheapest flights from Dulles Intl to Tongatapu
Explore the most affordable flight options available from Dulles Intl to Tongatapu. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2026.

This Fiji Airways deal was found by Cheapflights users on 2/16. 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 Fiji Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/54:58 pm
IAD
-
TBU
2 stops23h 37m
Multiple Airlines
Sat 12/1211:20 am
TBU
-
IAD
2 stops29h 23m
Multiple Airlines
Deal found 2/16$1,295
This Fiji Airways deal was found by Cheapflights users on 2/17. 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 Fiji Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/285:52 pm
IAD
-
TBU
2 stops23h 43m
Multiple Airlines
Sat 4/43:55 pm
TBU
-
IAD
2 stops23h 58m
Multiple Airlines
Deal found 2/17$1,846
This Priceline deal was found by Cheapflights users on 2/19. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/206:00 am
IAD
-
TBU
2 stops40h 10m
Air New Zealand
Fri 4/2410:40 pm
TBU
-
IAD
2 stops49h 45m
Air New Zealand
Deal found 2/19$2,252

Find flight deals from Dulles Intl to Tongatapu

Keep the following information in mind while searching for Dulles Intl to Tongatapu flight deals. Data was last updated February 20, 2026.

Round-trip from

$1,846
(Fiji Airways)

One-way from

$768
(Kiwi.com)
From Washington, D.C. Dulles Intl to Tongatapu
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One-way flight from Washington, D.C. Dulles Intl to Tongatapu
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to Tongatapu 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 February 20, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Tongatapu that are best for you.

Fly from

Dulles Intl

Fly to

Tongatapu

Route

Depart

Return

Price

Washington, D.C.Nuku‘alofa

IAD - TBU

IADTBU

Washington, D.C. Dulles Intl

Sat 3/28

5:52 pm-10:35 am

2 stops23h 43m

Nuku‘alofa Fua'Amotu Intl

Sat 4/4

3:55 pm-10:53 pm

2 stops23h 58m

$1,846

Washington, D.C.Nuku‘alofa

IAD - TBU

IADTBU

Washington, D.C. Dulles Intl

Mon 4/20

6:00 am-3:10 pm

2 stops40h 10m

Nuku‘alofa Fua'Amotu Intl

Fri 4/24

10:40 pm-7:25 am

2 stops49h 45m

$2,252

Washington, D.C.Nuku‘alofa

IAD - TBU

IADTBU

Washington, D.C. Dulles Intl

Wed 4/1

7:00 am-3:25 pm

3 stops39h 25m

$768

Washington, D.C.Nuku‘alofa

IAD - TBU

IADTBU

Washington, D.C. Dulles Intl

Tue 3/31

7:00 am-3:25 pm

3 stops39h 25m

$782

Washington, D.C.Nuku‘alofa

IAD - TBU

IADTBU

Washington, D.C. Dulles Intl

Thu 3/26

6:25 am-3:00 pm

3 stops39h 35m

$805

Washington, D.C.Nuku‘alofa

IAD - TBU

IADTBU

Washington, D.C. Dulles Intl

Mon 3/30

7:00 am-1:05 am

3 stops49h 05m

$1,156

Washington, D.C.Nuku‘alofa

IAD - TBU

IADTBU

Washington, D.C. Dulles Intl

Mon 3/30

8:53 pm-9:45 am

2 stops43h 52m

$1,201

Washington, D.C.Nuku‘alofa

IAD - TBU

IADTBU

Washington, D.C. Dulles Intl

Sun 3/29

7:11 pm-3:10 pm

3 stops50h 59m

$1,217

Washington, D.C.Nuku‘alofa

IAD - TBU

IADTBU

Washington, D.C. Dulles Intl

Sat 3/28

10:10 pm-9:45 am

2 stops42h 35m

$1,225

Washington, D.C.Nuku‘alofa

IAD - TBU

IADTBU

Washington, D.C. Dulles Intl

Wed 4/1

6:30 am-8:30 pm

2 stops45h 00m

$1,323

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/18

Showing 1-10 of 13 results
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Best time to book a flight from Dulles Intl to Tongatapu

Have a flexible travel schedule? Discover the best time to fly to Tongatapu 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 Tongatapu
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Tongatapu. 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 Tongatapu?

    There are many flights that can get you from Washington, D.C. Dulles Intl Airport to Tongatapu in 40h 10m. Fly via Air New Zealand to get the fastest option. The distance from Washington, D.C. Dulles Intl Airport to Tongatapu is about 7523 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Dulles Intl to Tongatapu by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Alternative routes for Dulles Intl to Tongatapu

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Baltimore to Nuku‘alofa flights
Dulles Intl to Nuku‘alofa flights

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