How long is the flight from Illinois to Tongatapu?

There are many flights that can get you from Illinois to Tongatapu in 36h 28m. Fly via Fiji Airways to get the fastest option. There are 7047 mi between Illinois and Tongatapu.

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.

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).

What is the cheapest time of day to fly from IL to TT?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Tongatapu as you normally would.

Can I find deals for flights from Illinois to Tongatapu that include hotel bookings?

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

How can I find direct flights from Illinois to Tongatapu?

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

Can I find deals for business class flights from Illinois to Tongatapu?

Yes. Cheapflights offers flight deals from Illinois 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.

$1,391+ Flights from Illinois to Tongatapu

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Cheap flight deals from Illinois to Tongatapu

Best flights from Illinois to Tongatapu
Discover carefully curated flight deals from Illinois to Tongatapu that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 18, 2025.

Sat 1/105:37 pmORD - TBU

2 stops36h 28mFiji Airways

Tue 3/35:40 amTBU - ORD

2 stops33h 00mFiji Airways

Deal found 12/16

$1,391

Sat 2/145:55 pmSTL - TBU

2 stops36h 55mFiji Airways

Wed 2/1811:20 amTBU - STL

2 stops31h 28mFiji Airways

Deal found 12/16

$1,409

Sat 2/215:55 pmSTL - TBU

2 stops36h 55mFiji Airways

Wed 2/255:40 amTBU - STL

2 stops37h 08mFiji Airways

Deal found 12/14

$1,522

Sun 2/111:46 amORD - TBU

2 stops27h 49mFiji Airways

Thu 2/55:00 amTBU - ORD

2 stops35h 23mFiji Airways

Deal found 12/16

$1,624

Thu 2/194:30 pmORD - TBU

2 stops27h 30mFiji Airways

Mon 2/2311:20 amTBU - ORD

2 stops29h 13mFiji Airways

Deal found 12/15

$1,713

Last-minute flights from Illinois to Tongatapu
Discover last-minute flight deals from Illinois to Tongatapu. Data last updated December 18, 2025 and is based on user searches.

Sat 1/105:37 pmORD - TBU

2 stops36h 28mFiji Airways

Tue 3/35:40 amTBU - ORD

2 stops33h 00mFiji Airways

Deal found 12/16

$1,391

Find flight deals from Illinois to Tongatapu

Round-trip from	$1,391 (oojo)

From Illinois to Tongatapu

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Use the filters below to find and compare flights from Illinois to Tongatapu that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoNuku‘alofa

ORD - TBU

ORDTBU

Chicago O'Hare Intl

Sat 1/10

5:37 pm-1:05 am

2 stops36h 28m

Nuku‘alofa Fua'Amotu Intl

Tue 3/3

5:40 am-7:40 pm

2 stops33h 00m

$1,391

St. LouisNuku‘alofa

STL - TBU

STLTBU

Lambert-St Louis

Sat 2/14

5:55 pm-1:50 am

2 stops36h 55m

Nuku‘alofa Fua'Amotu Intl

Wed 2/18

11:20 am-11:48 pm

2 stops31h 28m

$1,409

St. LouisNuku‘alofa

STL - TBU

STLTBU

Lambert-St Louis

Sat 2/21

5:55 pm-1:50 am

2 stops36h 55m

Nuku‘alofa Fua'Amotu Intl

Wed 2/25

5:40 am-11:48 pm

2 stops37h 08m

$1,522

ChicagoNuku‘alofa

ORD - TBU

ORDTBU

Chicago O'Hare Intl

Sun 2/1

11:46 am-10:35 am

2 stops27h 49m

Nuku‘alofa Fua'Amotu Intl

Thu 2/5

5:00 am-9:23 pm

2 stops35h 23m

$1,624

ChicagoNuku‘alofa

ORD - TBU

ORDTBU

Chicago O'Hare Intl

Thu 2/19

4:30 pm-3:00 pm

2 stops27h 30m

Nuku‘alofa Fua'Amotu Intl

Mon 2/23

11:20 am-9:33 pm

2 stops29h 13m

$1,713

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Best time to book a flight from Illinois to Tongatapu

Have a flexible travel schedule? Discover the best time to fly to Tongatapu from Illinois 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.

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Everything you need to know about your flight from Illinois to Tongatapu

No data available for this route at this time. Please check back soon.

Related info for your journey

How long is the flight from Illinois to Tongatapu?
There are many flights that can get you from Illinois to Tongatapu in 36h 28m. Fly via Fiji Airways to get the fastest option. There are 7047 mi between Illinois and Tongatapu.
Can I find deals for flights from Illinois to Tongatapu that include hotel bookings?
Yes. In addition to deals on Illinois to Tongatapu flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Illinois to Tongatapu?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Tongatapu.
Can I find deals for business class flights from Illinois to Tongatapu?
Yes. Cheapflights offers flight deals from Illinois 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.

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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 1/10. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Illinois to Tongatapu with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Illinois to Tongatapu

Best flights from Illinois to Tongatapu
Discover carefully curated flight deals from Illinois to Tongatapu that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 18, 2025.

Discover carefully curated flight deals from Illinois to Tongatapu that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 18, 2025.

Last-minute flights from Illinois to Tongatapu
Discover last-minute flight deals from Illinois to Tongatapu. Data last updated December 18, 2025 and is based on user searches.

Discover last-minute flight deals from Illinois to Tongatapu. Data last updated December 18, 2025 and is based on user searches.

Find flight deals from Illinois to Tongatapu

Keep the following information in mind while searching for Illinois to Tongatapu flight deals. Data was last updated December 18, 2025.

Round-trip from

Cheapflights Fare Finder

Use the filters below to find and compare flights from Illinois to Tongatapu that are best for you.

Best time to book a flight from Illinois to Tongatapu

Have a flexible travel schedule? Discover the best time to fly to Tongatapu from Illinois with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Illinois to Tongatapu

Related info for your journey

Find useful and relevant information for your journey from Illinois 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 Illinois to Tongatapu?

Can I find deals for flights from Illinois to Tongatapu that include hotel bookings?

How can I find direct flights from Illinois to Tongatapu?

Can I find deals for business class flights from Illinois to Tongatapu?

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Alternative routes for Illinois to Tongatapu

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Complete your trip

Complete your trip to Tongatapu by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Illinois to Tongatapu by cabin class

Find flights from Illinois to Tongatapu, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Illinois and Tongatapu flights

Browse other Illinois and Tongatapu flight options. Last updated on December 18, 2025.

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$1,391+ Cheap flights from Illinois 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 1/10. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Illinois to Tongatapu with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Illinois to Tongatapu

Best flights from Illinois to TongatapuDiscover carefully curated flight deals from Illinois to Tongatapu that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 18, 2025.

Discover carefully curated flight deals from Illinois to Tongatapu that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 18, 2025.

Find flight deals from Illinois to Tongatapu

Keep the following information in mind while searching for Illinois to Tongatapu flight deals. Data was last updated December 18, 2025.

Round-trip from

Cheapflights Fare Finder

Use the filters below to find and compare flights from Illinois to Tongatapu that are best for you.

Best time to book a flight from Illinois to Tongatapu

Have a flexible travel schedule? Discover the best time to fly to Tongatapu from Illinois with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Illinois to Tongatapu

Related info for your journey

Find useful and relevant information for your journey from Illinois 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 Illinois to Tongatapu?

Can I find deals for flights from Illinois to Tongatapu that include hotel bookings?

How can I find direct flights from Illinois to Tongatapu?

Can I find deals for business class flights from Illinois to Tongatapu?

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 Illinois to Tongatapu

See prices for flight routes from nearby airports that may be better suited for you.

100% Free

Book with Flexibility

Travel Smart

Best flights from Illinois to Tongatapu
Discover carefully curated flight deals from Illinois to Tongatapu that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 18, 2025.