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Cheap flights from Illinois to Tonga from $1,143

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 Tonga departing on 4/4. 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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0 bags

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Find the cheapest flights from Illinois to Tonga

Cheap round-trip flights

Enter your travel dates to find the best prices.
Fiji Airways Logo
6:50 pm - 1:45 am
STL
-
TBU
36h 55m
2 stops
Fiji Airways Logo
5:40 am - 10:59 pm
TBU
-
STL
35h 19m
2 stops
$1,143Fiji Airways
Sat, Apr 4 - Tue, Apr 7
Fiji Airways Logo
6:56 pm - 1:45 am
ORD
-
TBU
36h 49m
2 stops
Fiji Airways Logo
4:55 pm - 9:13 pm
TBU
-
ORD
22h 18m
2 stops
$1,156Fiji Airways
Tue, Apr 7 - Sat, Apr 25
Multiple Airlines Logo
6:56 pm - 3:55 pm
ORD
-
TBU
26h 59m
2 stops
Multiple Airlines Logo
11:55 am - 9:38 pm
TBU
-
ORD
27h 43m
2 stops
$1,164Multiple Airlines
Tue, Apr 7 - Tue, Apr 28
Fiji Airways Logo
6:50 pm - 1:45 am
STL
-
TBU
36h 55m
2 stops
Fiji Airways Logo
5:40 am - 10:59 pm
TBU
-
STL
35h 19m
2 stops
$1,168Fiji Airways
Sat, Apr 4 - Tue, Apr 7
Fiji Airways Logo
6:51 pm - 1:45 am
ORD
-
TBU
36h 54m
2 stops
Fiji Airways Logo
4:55 pm - 9:13 pm
TBU
-
ORD
22h 18m
2 stops
$1,181Fiji Airways
Sat, Apr 4 - Sat, Apr 25
Fiji Airways Logo
7:13 pm - 1:45 am
ORD
-
TBU
36h 32m
2 stops
Fiji Airways Logo
4:55 pm - 9:13 pm
TBU
-
ORD
22h 18m
2 stops
$1,334Fiji Airways
Sun, Apr 5 - Sat, Apr 25
Fiji Airways Logo
6:02 pm - 3:55 pm
ORD
-
TBU
27h 53m
2 stops
Fiji Airways Logo
5:40 am - 9:09 pm
TBU
-
ORD
33h 29m
2 stops
$1,346Fiji Airways
Tue, Jun 30 - Tue, Jul 7
Fiji Airways Logo
6:56 pm - 1:45 am
ORD
-
TBU
36h 49m
2 stops
Fiji Airways Logo
5:40 am - 5:45 am
TBU
-
ORD
42h 05m
2 stops
$1,348Fiji Airways
Tue, Apr 7 - Fri, May 1
Fiji Airways Logo
6:51 pm - 1:45 am
ORD
-
TBU
36h 54m
2 stops
Fiji Airways Logo
5:40 am - 9:13 pm
TBU
-
ORD
33h 33m
2 stops
$1,359Fiji Airways
Sat, Apr 4 - Tue, Apr 28
Fiji Airways Logo
6:32 pm - 1:45 am
ORD
-
TBU
37h 13m
2 stops
Fiji Airways Logo
11:20 am - 9:38 pm
TBU
-
ORD
28h 18m
2 stops
$1,361Fiji Airways
Sat, Jun 27 - Mon, Jul 6

Fiji Airways flights from Illinois to Tonga

Our best Fiji Airways deals on Illinois to Tonga flight tickets
Fiji Airways
Apr 4
STL6:50 pmLambert-St Louis
36h 55m
2 stops
TBU1:45 amNuku‘alofa Fua'Amotu Intl
Apr 7
TBU5:40 amNuku‘alofa Fua'Amotu Intl
35h 19m
2 stops
STL10:59 pmLambert-St Louis
$1,143
Fiji Airways
Apr 7
ORD6:56 pmChicago O'Hare Intl
36h 49m
2 stops
TBU1:45 amNuku‘alofa Fua'Amotu Intl
Apr 25
TBU4:55 pmNuku‘alofa Fua'Amotu Intl
22h 18m
2 stops
ORD9:13 pmChicago O'Hare Intl
$1,156
Fiji Airways
Apr 4
STL6:50 pmLambert-St Louis
36h 55m
2 stops
TBU1:45 amNuku‘alofa Fua'Amotu Intl
Apr 7
TBU5:40 amNuku‘alofa Fua'Amotu Intl
35h 19m
2 stops
STL10:59 pmLambert-St Louis
$1,168

Air New Zealand flights from Illinois to Tonga

Our best Air New Zealand deals on Illinois to Tonga flight tickets
Air New Zealand
Jun 17
ORD8:02 pmChicago O'Hare Intl
44h 43m
2 stops
TBU10:45 amNuku‘alofa Fua'Amotu Intl
Jul 7
TBU11:55 amNuku‘alofa Fua'Amotu Intl
36h 02m
2 stops
ORD5:57 amChicago O'Hare Intl
$1,980
Air New Zealand
Jun 19
ORD9:21 pmChicago O'Hare Intl
43h 24m
2 stops
TBU10:45 amNuku‘alofa Fua'Amotu Intl
Jul 9
TBU11:55 amNuku‘alofa Fua'Amotu Intl
29h 20m
2 stops
ORD11:15 pmChicago O'Hare Intl
$2,028
Air New Zealand
Jun 17
ORD8:02 pmChicago O'Hare Intl
44h 43m
2 stops
TBU10:45 amNuku‘alofa Fua'Amotu Intl
Jul 4
TBU8:55 pmNuku‘alofa Fua'Amotu Intl
42h 51m
2 stops
ORD9:46 pmChicago O'Hare Intl
$2,047

momondo 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, momondo users made 832,500 searches. Data last updated February 13, 2026.
Use the filters below to find and compare flights from Illinois to Tonga that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisNuku‘alofa

STL - TBU

STLTBU

Lambert-St Louis

Sat 4/4

6:50 pm-1:45 am

2 stops36h 55m

Nuku‘alofa Fua'Amotu Intl

Tue 4/7

5:40 am-10:59 pm

2 stops35h 19m

$1,143

ChicagoNuku‘alofa

ORD - TBU

ORDTBU

Chicago O'Hare Intl

Tue 4/7

6:56 pm-1:45 am

2 stops36h 49m

Nuku‘alofa Fua'Amotu Intl

Sat 4/25

4:55 pm-9:13 pm

2 stops22h 18m

$1,156

ChicagoNuku‘alofa

ORD - TBU

ORDTBU

Chicago O'Hare Intl

Tue 4/7

6:56 pm-3:55 pm

2 stops26h 59m

Nuku‘alofa Fua'Amotu Intl

Tue 4/28

11:55 am-9:38 pm

2 stops27h 43m

$1,164

St. LouisNuku‘alofa

STL - TBU

STLTBU

Lambert-St Louis

Sat 4/4

6:50 pm-1:45 am

2 stops36h 55m

Nuku‘alofa Fua'Amotu Intl

Tue 4/7

5:40 am-10:59 pm

2 stops35h 19m

$1,168

ChicagoNuku‘alofa

ORD - TBU

ORDTBU

Chicago O'Hare Intl

Sat 4/4

6:51 pm-1:45 am

2 stops36h 54m

Nuku‘alofa Fua'Amotu Intl

Sat 4/25

4:55 pm-9:13 pm

2 stops22h 18m

$1,181

ChicagoNuku‘alofa

ORD - TBU

ORDTBU

Chicago O'Hare Intl

Sun 4/5

7:13 pm-1:45 am

2 stops36h 32m

Nuku‘alofa Fua'Amotu Intl

Sat 4/25

4:55 pm-9:13 pm

2 stops22h 18m

$1,334

ChicagoNuku‘alofa

ORD - TBU

ORDTBU

Chicago O'Hare Intl

Tue 6/30

6:02 pm-3:55 pm

2 stops27h 53m

Nuku‘alofa Fua'Amotu Intl

Tue 7/7

5:40 am-9:09 pm

2 stops33h 29m

$1,346

ChicagoNuku‘alofa

ORD - TBU

ORDTBU

Chicago O'Hare Intl

Tue 4/7

6:56 pm-1:45 am

2 stops36h 49m

Nuku‘alofa Fua'Amotu Intl

Fri 5/1

5:40 am-5:45 am

2 stops42h 05m

$1,348

ChicagoNuku‘alofa

ORD - TBU

ORDTBU

Chicago O'Hare Intl

Sat 4/4

6:51 pm-1:45 am

2 stops36h 54m

Nuku‘alofa Fua'Amotu Intl

Tue 4/28

5:40 am-9:13 pm

2 stops33h 33m

$1,359

ChicagoNuku‘alofa

ORD - TBU

ORDTBU

Chicago O'Hare Intl

Sat 6/27

6:32 pm-1:45 am

2 stops37h 13m

Nuku‘alofa Fua'Amotu Intl

Mon 7/6

11:20 am-9:38 pm

2 stops28h 18m

$1,361

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

Cheap Illinois to Tonga flight deals and tips

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

Fastest flight time

36h 49m

Direct flights

None
The fastest flight from Illinois to Tonga takes 36h 49m
There are no direct flights from Illinois to Tonga. There are no popular flight routes from Illinois to Tonga.
Search flight deals

  • When did momondo last update prices for flights from Illinois to Tonga?

    Prices for flights from Illinois to Tonga are updated daily.

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois to Tonga.

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

    The required travel and health documents for your Tonga 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 Tonga. 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 Tonga?

    You can take advantage of momondo’s Price Alerts by first searching for your flights to Illinois from Tonga. 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 Tonga 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 compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

Why use momondo?

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

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

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

momondo does allow users to show only those flights to Tonga 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 Tonga?

momondo helps you find the best flight between Illinois and Tonga by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Of course. momondo tracks the price of Illinois to Tonga flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Popular cities in Tonga

Popular flights according to clicks in the last 7 days on momondo
Flights to Nuku‘alofafrom $840