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Cheap flights from Illinois to Tongatapu from $1,223

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Tongatapu departing on 4/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Illinois to Tongatapu

Cheap round-trip flights

Enter your travel dates to find the best prices.
Fiji Airways Logo
6:45 pm - 1:05 amORD-TBU
36h 20m2 stops
Fiji Airways Logo
11:20 am - 9:16 pmTBU-ORD
27h 56m2 stops
$1,223Fiji Airways
Find Deal
Sa, Apr 18 - Di, Apr 21
Fiji Airways Logo
5:37 pm - 10:35 amORD-TBU
21h 58m2 stops
Fiji Airways Logo
4:00 pm - 7:29 pmTBU-ORD
22h 29m2 stops
$1,339Fiji Airways
Find Deal
Sa, Jan 10 - Sa, Jan 24
Multiple Airlines Logo
5:59 pm - 10:35 amSTL-TBU
22h 36m2 stops
Multiple Airlines Logo
12:20 pm - 5:52 amTBU-STL
35h 32m2 stops
$1,479Multiple Airlines
Find Deal
Sa, Mrz 28 - Mi, Apr 8
Multiple Airlines Logo
5:37 pm - 10:35 amORD-TBU
21h 58m2 stops
Multiple Airlines Logo
2:50 pm - 5:15 amTBU-ORD
33h 25m2 stops
$1,488Multiple Airlines
Find Deal
Sa, Jan 10 - Sa, Jan 24
Fiji Airways Logo
5:04 pm - 3:00 pmSTL-TBU
26h 56m2 stops
Fiji Airways Logo
11:20 am - 7:29 pmTBU-STL
27h 09m2 stops
$1,666Fiji Airways
Find Deal
Di, Jan 6 - Di, Jan 13
Multiple Airlines Logo
3:35 pm - 10:35 amORD-TBU
24h 00m2 stops
Multiple Airlines Logo
2:50 pm - 2:19 pmTBU-ORD
42h 29m3 stops
$3,213Multiple Airlines
Find Deal
Sa, Jan 10 - Sa, Jan 24
Multiple Airlines Logo
5:04 pm - 1:50 amSTL-TBU
37h 46m2 stops
Multiple Airlines Logo
4:55 pm - 3:29 pmTBU-STL
65h 34m3 stops
$4,350Multiple Airlines
Find Deal
Di, Jan 6 - Di, Jan 13
Multiple Airlines Logo
11:51 am - 3:00 pmSTL-TBU
32h 09m3 stops
Multiple Airlines Logo
4:55 pm - 3:29 pmTBU-STL
65h 34m3 stops
$4,666Multiple Airlines
Find Deal
Di, Jan 6 - Di, Jan 13

Fiji Airways flights from Illinois to Tongatapu

Our best Fiji Airways deals on Illinois to Tongatapu flight tickets
Fiji Airways
Apr 18
ORD6:45 pmChicago O'Hare Intl
36h 20m
2 stops
TBU1:05 amNuku‘alofa Fua'Amotu Intl
Apr 21
TBU11:20 amNuku‘alofa Fua'Amotu Intl
27h 56m
2 stops
ORD9:16 pmChicago O'Hare Intl
$1,223
Find similar
Fiji Airways
Jan 10
ORD5:37 pmChicago O'Hare Intl
21h 58m
2 stops
TBU10:35 amNuku‘alofa Fua'Amotu Intl
Jan 24
TBU4:00 pmNuku‘alofa Fua'Amotu Intl
22h 29m
2 stops
ORD7:29 pmChicago O'Hare Intl
$1,339
Find similar
Fiji Airways
Jan 6
STL5:04 pmLambert-St Louis
26h 56m
2 stops
TBU3:00 pmNuku‘alofa Fua'Amotu Intl
Jan 13
TBU11:20 amNuku‘alofa Fua'Amotu Intl
27h 09m
2 stops
STL7:29 pmLambert-St Louis
$1,666
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated November 23, 2025.
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

Sa 4/18

6:45 pm-1:05 am

2 stops36h 20m

Nuku‘alofa Fua'Amotu Intl

Di 4/21

11:20 am-9:16 pm

2 stops27h 56m

$1,223

ChicagoNuku‘alofa

ORD - TBU

ORDTBU

Chicago O'Hare Intl

Sa 1/10

5:37 pm-10:35 am

2 stops21h 58m

Nuku‘alofa Fua'Amotu Intl

Sa 1/24

4:00 pm-7:29 pm

2 stops22h 29m

$1,339

St. LouisNuku‘alofa

STL - TBU

STLTBU

Lambert-St Louis

Sa 3/28

5:59 pm-10:35 am

2 stops22h 36m

Nuku‘alofa Fua'Amotu Intl

Mi 4/8

12:20 pm-5:52 am

2 stops35h 32m

$1,479

ChicagoNuku‘alofa

ORD - TBU

ORDTBU

Chicago O'Hare Intl

Sa 1/10

5:37 pm-10:35 am

2 stops21h 58m

Nuku‘alofa Fua'Amotu Intl

Sa 1/24

2:50 pm-5:15 am

2 stops33h 25m

$1,488

St. LouisNuku‘alofa

STL - TBU

STLTBU

Lambert-St Louis

Di 1/6

5:04 pm-3:00 pm

2 stops26h 56m

Nuku‘alofa Fua'Amotu Intl

Di 1/13

11:20 am-7:29 pm

2 stops27h 09m

$1,666

ChicagoNuku‘alofa

ORD - TBU

ORDTBU

Chicago O'Hare Intl

Sa 1/10

3:35 pm-10:35 am

2 stops24h 00m

Nuku‘alofa Fua'Amotu Intl

Sa 1/24

2:50 pm-2:19 pm

3 stops42h 29m

$3,213

St. LouisNuku‘alofa

STL - TBU

STLTBU

Lambert-St Louis

Di 1/6

5:04 pm-1:50 am

2 stops37h 46m

Nuku‘alofa Fua'Amotu Intl

Di 1/13

4:55 pm-3:29 pm

3 stops65h 34m

$4,350

St. LouisNuku‘alofa

STL - TBU

STLTBU

Lambert-St Louis

Di 1/6

11:51 am-3:00 pm

3 stops32h 09m

Nuku‘alofa Fua'Amotu Intl

Di 1/13

4:55 pm-3:29 pm

3 stops65h 34m

$4,666

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

Cheap Illinois to Tongatapu flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to Tongatapu

Direct flights

None
There are no direct flights from Illinois to Tongatapu. There are no popular flight routes from Illinois to Tongatapu.
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  • When did momondo last update prices for flights from Illinois to Tongatapu?

    Prices for flights from Illinois to Tongatapu are refreshed on a daily basis.

  • How old do you have to be to fly from Illinois to Tongatapu?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois to Tongatapu.

  • What documentation or ID do you need to fly to Tongatapu?

    The required travel and health documents for your Tongatapu trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Tongatapu. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • How do I get Price Alerts for flights from Illinois to Tongatapu?

    You can take advantage of momondo’s Price Alerts by first searching for your flights to Illinois from Tongatapu. Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.

  • How can I save money on flights from Illinois to Tongatapu with momondo?

    With “Price Forecast”, learn how soon you should book your flight in advance. Down to the day of week and time of day, our information can inform you on the ideal time to book to save on your travel. Our “Price Calendar” shows you at a quick glance when to book your travel for lower rates. By setting “Price Alerts” you can monitor changes in price and target the ideal time to book. Search for your trip destination by budget amount via our “Explore” feature. Whether you’re looking for ideas for your next travel adventure or cost-cutting tips, our “Discover” content is a great place to start.

  • How does momondo find its flight prices?

    We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

Why use momondo?

Why should I use momondo to find a flight deal from Illinois to Tongatapu?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Illinois to Tongatapu. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Illinois to Tongatapu with flexible booking policies on momondo?

momondo does allow users to show only those flights to Tongatapu from Illinois which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Illinois to Tongatapu?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Illinois to Tongatapu.

I’m not ready to book a flight from Illinois to Tongatapu right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Illinois to Tongatapu now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Tongatapu and let you know when they change.

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1 adult
Di 12/23
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Popular cities in Tongatapu

Popular flights according to clicks in the last 7 days on momondo
Flights to Nuku‘alofafrom $947