$1,929+ Cheap flights from Dulles Intl (IAD) to Tongatapu
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/24. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — TBU
jun. 17 — jun. 241
1 adult, Economy
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1. Tell us where you want to go
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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 Tongatapu
Keep the following information in mind while searching for Dulles Intl to Tongatapu flight deals. Data was last updated junio 12, 2025.
Round-trip from | $1,929 (Fiji Airways) |
|---|
Find flight deals from Dulles Intl to Tongatapu
Cheapest flights from Dulles Intl to TongatapuExplore 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 junio 12, 2025.
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 junio 12, 2025.
This Fiji Airways deal was found by Cheapflights users on 6/10. 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.
mar. 6/246:43 pmIAD - TBU
2 stops28h 02mMultiple Airlines
mar. 7/15:50 pmTBU - IAD
2 stops21h 49mMultiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$1,929
This FlightHub deal was found by Cheapflights users on 6/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 7/23:00 pmIAD - TBU
2 stops27h 10mAir New Zealand
mié. 7/92:35 pmTBU - IAD
2 stops34h 57mAir New Zealand
Deal found 6/12![Air New Zealand logo]()
$2,571
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 junio 12, 2025.
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
mar. 6/24
6:43 pm-3:45 pm
2 stops28h 02m
Nuku‘alofa Fua'Amotu Intl
mar. 7/1
5:50 pm-10:39 pm
2 stops21h 49m
$1,929
Washington, D.C.Nuku‘alofa
IAD - TBU
IADTBU
Washington, D.C. Dulles Intl
mié. 7/2
3:00 pm-11:10 am
2 stops27h 10m
Nuku‘alofa Fua'Amotu Intl
mié. 7/9
2:35 pm-8:32 am
2 stops34h 57m
$2,571
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
Rainfall in Tongatapu by month
Plan your trip to Tongatapu by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Tongatapu ranges from 3.7 - 8.3 inches per month. February is typically the wettest month, when rainfall can reach 8.3 in. June is typically the driest time to visit Tongatapu when rainfall is around 3.7 in.
Temperature in Tongatapu by month
Plan your trip to Tongatapu by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Tongatapu, use this chart to help with planning. For those seeking warmer temperatures, February is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 71.6 F).
Reviews of airlines servicing Tongatapu
Get insights into the airlines that provide service to Tongatapu. 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 Tongatapu. Reviews last updated junio 12, 2025.
Entertainment
7.4
Overall
8.0
Boarding
8.2
Food
7.3
Crew
8.5
Comfort
8.0
Reviews
1 / 20
6.0
GoodAnonymous,May 2025
AKL - SFO
Entertainment
7.4
Overall
8.0
Boarding
8.2
Food
7.3
Crew
8.5
Comfort
8.0
Reviews
1 / 20
6.0
GoodAnonymous,May 2025
AKL - SFO