HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Tonga

$674+ Cheap flights from Dulles Intl (IAD) to Tonga

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 2/22. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — TBU
feb. 4 — feb. 111
mar. 2/4
mar. 2/11
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Dulles Intl to Tonga 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.

Find flight deals from Dulles Intl to Tonga

One-way flights from Dulles Intl to Tonga
Search for one-way flight options from Dulles Intl to Tonga. Find affordable one-way fares based on user searches. Data last updated enero 30, 2025.

This Fiji Airways deal was found by Cheapflights users on 1/30. 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 Fiji Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 2/225:13 pmIAD - TBU
2 stops29h 52mMultiple Airlines
Deal found 1/30$674
This Justfly.com deal was found by Cheapflights users on 1/30. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 2/2310:20 pmIAD - TBU
2 stops43h 25mAir New Zealand
Deal found 1/30$1,138

Find flights from Dulles Intl to Tonga within your budget

Customize your flight search to find flights from Dulles Intl to Tonga 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 enero 30, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

Washington, D.C.Nuku‘alofa

IAD - TBU

IADTBU

Washington, D.C. Dulles Intl

sáb. 2/22

5:13 pm-5:05 pm

2 stops29h 52m

$674

Washington, D.C.Nuku‘alofa

IAD - TBU

IADTBU

Washington, D.C. Dulles Intl

dom. 2/23

10:20 pm-11:45 am

2 stops43h 25m

$1,138

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/30

Travel insights for flights from Dulles Intl to Tonga

Get recent, data-driven insights about flights from Dulles Intl to Tonga including ideal travel times, pricing trends, and more.

Rainfall in Tonga by month

Plan your trip to Tonga by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Tonga 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 Tonga when rainfall is around 3.7 in.

Temperature in Tonga by month

Plan your trip to Tonga by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Tonga, 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 Tonga

Get insights into the airlines that provide service to Tonga. 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 Tonga. Reviews last updated enero 30, 2025.
Air New Zealand
7.9
Good
481 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.4

Crew

8.5

Overall

7.9

Food

7.2

Reviews

1 / 20

4.0
Okay

eric,Jan 2025

SFO - BOS

Connection Booked by United was one hour and 20 minutes to come from international Auckland to San Francisco, deplane, clear customs and immigration, collect baggage, transfer baggage, go through TSA, walk/run across terminals 20 minutes and barely make connection When united informed pre-vacation of the tightness of the connection,would not switch to a flight two hours later, despite open seats, the flight that the baggage actually took Passengers made connection; baggage did not Food: nonexistent for a cross country six hour flight Arrived early, but of course gate unavailable and then plane door to get off stuck for 20 minutes

Air New Zealand
7.9
Good
481 reviews
Air New Zealand
7.9
Good
481 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.4

Crew

8.5

Overall

7.9

Food

7.2

Reviews

1 / 20

4.0
Okay

eric,Jan 2025

SFO - BOS

Connection Booked by United was one hour and 20 minutes to come from international Auckland to San Francisco, deplane, clear customs and immigration, collect baggage, transfer baggage, go through TSA, walk/run across terminals 20 minutes and barely make connection When united informed pre-vacation of the tightness of the connection,would not switch to a flight two hours later, despite open seats, the flight that the baggage actually took Passengers made connection; baggage did not Food: nonexistent for a cross country six hour flight Arrived early, but of course gate unavailable and then plane door to get off stuck for 20 minutes

Related info for your journey

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

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

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

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

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

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

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

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.

Alternative routes for Dulles Intl to Tonga

See prices for flight routes from nearby airports that may be better suited for you.
Dulles Intl to Sydney flights
Reagan-National to Sydney flights
Baltimore to Sydney flights
Dulles Intl to Melbourne flights
Reagan-National to Melbourne flights
Dulles Intl to Auckland flights
Baltimore to Melbourne flights
Reagan-National to Auckland flights
Baltimore to Auckland flights
Dulles Intl to Brisbane flights
Reagan-National to Brisbane flights
Baltimore to Brisbane flights
Baltimore to Christchurch flights
Dulles Intl to Christchurch flights
Dulles Intl to Avalon flights
Reagan-National to Christchurch flights
Dulles Intl to Nadi flights
Reagan-National to Nadi flights
Baltimore to Nadi flights
Dulles Intl to Tamuning flights
Dulles Intl to Perth flights
Baltimore to Tamuning flights
Dulles Intl to Papeete flights
Reagan-National to Papeete flights
Reagan-National to Perth flights
Reagan-National to Tamuning flights
Dulles Intl to Adelaide flights
Baltimore to Perth flights
Dulles Intl to Wellington flights
Baltimore to Papeete flights
Reagan-National to Wellington flights
Reagan-National to Vaitape flights
Dulles Intl to Queenstown flights
Reagan-National to Queenstown flights
Reagan-National to Adelaide flights
Baltimore to Adelaide flights
Baltimore to Queenstown flights
Baltimore to Avalon flights
Baltimore to Wellington flights
Dulles Intl to Canberra flights
Dulles Intl to Cairns flights
Dulles Intl to Vaitape flights
Dulles Intl to Coolangatta flights
Dulles Intl to Apia flights
Reagan-National to Coolangatta flights
Baltimore to Apia flights
Reagan-National to Apia flights
Dulles Intl to Suva flights
Reagan-National to Cairns flights
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.