$1,498+ 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 2/19. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — TBU
Jan 8 — Jan 151
1 adult, Economy
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1. Tell us where you want to go
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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 9, 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 9, 2025.
This Fiji Airways deal was found by Cheapflights users on 12/6. 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.
Thu 2/194:49 pmORD - TBU
2 stops27h 11mFiji Airways
Mon 2/2311:20 amTBU - ORD
2 stops29h 13mFiji Airways
Deal found 12/6![Fiji Airways logo]()
$1,498
This Fiji Airways deal was found by Cheapflights users on 12/6. 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 2/215:55 pmSTL - TBU
2 stops36h 55mFiji Airways
Wed 2/255:40 amTBU - STL
2 stops37h 08mFiji Airways
Deal found 12/6![Fiji Airways logo]()
$1,522
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 9, 2025.
Round-trip from | $1,498 (Fiji Airways) |
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Cheapflights Fare Finder
Customize your flight search to find flights from Illinois 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 December 9, 2025.
Use the filters below to find and compare flights from Illinois to Tongatapu that are best for you.
Fly from
Illinois
Fly to
Tongatapu
Route
Depart
Return
Price
ChicagoNuku‘alofa
ORD - TBU
ORDTBU
Chicago O'Hare Intl
Thu 2/19
4:49 pm-3:00 pm
2 stops27h 11m
Nuku‘alofa Fua'Amotu Intl
Mon 2/23
11:20 am-9:33 pm
2 stops29h 13m
$1,498
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
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
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Cheapflights Insights
Everything you need to know about your flight from Illinois to Tongatapu
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