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$720+ Cheap flights from Illinois 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 10/13. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — TBU
Aug 25 — Sep 11
Mon 8/25
Mon 9/1
1 adult, Economy
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Cheap flight deals from Illinois to Tonga

Keep the following information in mind while searching for Illinois to Tonga flight deals. Data was last updated August 20, 2025.

Round-trip from

$1,199
(Jetabroad)

One-way from

$720
(Fiji Airways)
From Illinois to Tonga
Search Deals
One-way flight from Illinois to Tonga
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Find flight deals from Illinois to Tonga

Cheapest flights from Illinois to Tonga
Explore the most affordable flight options available from Illinois to Tonga. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 20, 2025.

This Jetabroad deal was found by Cheapflights users on 8/20. 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/46:30 pmORD - TBU
2 stops22h 05mFiji Airways
Sat 10/114:25 pmTBU - ORD
2 stops22h 49mFiji Airways
Deal found 8/20$1,199
This Mytrip deal was found by Cheapflights users on 8/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/47:09 pmORD - TBU
2 stops21h 26mMultiple Airlines
Sat 10/114:25 pmTBU - ORD
3 stops31h 00mMultiple Airlines
Deal found 8/20$1,558
This Fiji Airways deal was found by Cheapflights users on 8/17. 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 8/235:52 pmSTL - TBU
2 stops37h 13mFiji Airways
Tue 8/266:20 pmTBU - STL
2 stops20h 02mFiji Airways
Deal found 8/17$1,601

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois 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 August 20, 2025.
Use the filters below to find and compare flights from Illinois to Tonga that are best for you.

Fly from

Illinois

Fly to

Tonga

Route

Depart

Return

Price

ChicagoNuku‘alofa

ORD - TBU

ORDTBU

Chicago O'Hare Intl

Sat 10/4

6:30 pm-10:35 am

2 stops22h 05m

Nuku‘alofa Fua'Amotu Intl

Sat 10/11

4:25 pm-9:14 pm

2 stops22h 49m

$1,199

ChicagoNuku‘alofa

ORD - TBU

ORDTBU

Chicago O'Hare Intl

Sat 10/4

7:09 pm-10:35 am

2 stops21h 26m

Nuku‘alofa Fua'Amotu Intl

Sat 10/11

4:25 pm-5:25 am

3 stops31h 00m

$1,558

ChicagoNuku‘alofa

ORD - TBU

ORDTBU

Chicago O'Hare Intl

Mon 10/13

7:01 pm-9:25 am

2 stops20h 24m

$720

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/18

Best time to book a flight from Illinois to Tonga

Have a flexible travel schedule? Discover the best time to fly to Tonga 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.

Cheapflights Insights

Everything you need to know about your flight from Illinois to Tonga
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 Illinois to Tonga. 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 Tonga?

    Airlines like Fiji Airways fly from Illinois to Tonga in about 22h 05m. The time it takes to get you to your destination can typically vary by up to . The distance between Illinois and Tonga is about 7047 mi.

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

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

  • How can I find direct flights from Illinois to Tonga?

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

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

    Yes. Cheapflights offers flight deals from Illinois 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.

See more FAQs

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