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Cheap flights from Champaign to Buenos Aires from $1,612

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Champaign to Buenos Aires departing on 12/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Champaign to Buenos Aires

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
8:43 pm - 9:20 am
CMI
-
EZE
57h 37m
2 stops
United Airlines Logo
10:05 pm - 12:50 pm
EZE
-
CMI
17h 45m
2 stops
$1,612United Airlines
Sun, Dec 20 - Sun, Jan 17
United Airlines Logo
8:43 pm - 7:20 am
CMI
-
EZE
55h 37m
2 stops
United Airlines Logo
11:55 pm - 8:54 am
EZE
-
CMI
35h 59m
2 stops
$1,626United Airlines
Sun, Dec 20 - Sun, Jan 17
American Airlines Logo
12:21 pm - 7:25 am
CMI
-
EZE
16h 04m
2 stops
American Airlines Logo
10:30 pm - 9:17 pm
EZE
-
CMI
25h 47m
1 stop
$2,020American Airlines
Sun, Dec 20 - Sun, Jan 17
American Airlines Logo
6:00 am - 8:40 am
CMI
-
EZE
23h 40m
2 stops
American Airlines Logo
10:30 pm - 3:01 pm
EZE
-
CMI
19h 31m
1 stop
$2,072American Airlines
Sun, Dec 20 - Sun, Jan 17
American Airlines Logo
6:40 am - 8:30 am
CMI
-
EZE
22h 50m
1 stop
American Airlines Logo
10:30 pm - 9:17 pm
EZE
-
CMI
25h 47m
1 stop
$2,313American Airlines
Sun, Dec 20 - Sun, Jan 17
American Airlines Logo
2:57 pm - 8:30 am
CMI
-
EZE
14h 33m
1 stop
American Airlines Logo
10:30 pm - 3:01 pm
EZE
-
CMI
19h 31m
1 stop
$2,366American Airlines
Sun, Dec 20 - Sun, Jan 17

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United Airlines flights from Champaign to Buenos Aires

Our best United Airlines deals on Champaign to Buenos Aires flight tickets
United Airlines
Dec 20
CMI8:43 pmChampaign University-Willard
57h 37m
2 stops
EZE9:20 amBuenos Aires Ministro Pistarini
Jan 17
EZE10:05 pmBuenos Aires Ministro Pistarini
17h 45m
2 stops
CMI12:50 pmChampaign University-Willard
$1,612
United Airlines
Dec 20
CMI8:43 pmChampaign University-Willard
55h 37m
2 stops
EZE7:20 amBuenos Aires Ministro Pistarini
Jan 17
EZE11:55 pmBuenos Aires Ministro Pistarini
35h 59m
2 stops
CMI8:54 amChampaign University-Willard
$1,626

American Airlines flights from Champaign to Buenos Aires

Our best American Airlines deals on Champaign to Buenos Aires flight tickets
American Airlines
Dec 20
CMI12:21 pmChampaign University-Willard
16h 04m
2 stops
EZE7:25 amBuenos Aires Ministro Pistarini
Jan 17
EZE10:30 pmBuenos Aires Ministro Pistarini
25h 47m
1 stop
CMI9:17 pmChampaign University-Willard
$2,020
American Airlines
Dec 20
CMI6:00 amChampaign University-Willard
23h 40m
2 stops
EZE8:40 amBuenos Aires Ministro Pistarini
Jan 17
EZE10:30 pmBuenos Aires Ministro Pistarini
19h 31m
1 stop
CMI3:01 pmChampaign University-Willard
$2,072
American Airlines
Dec 20
CMI6:40 amChampaign University-Willard
22h 50m
1 stop
EZE8:30 amBuenos Aires Ministro Pistarini
Jan 17
EZE10:30 pmBuenos Aires Ministro Pistarini
25h 47m
1 stop
CMI9:17 pmChampaign University-Willard
$2,313

momondo Fare Finder

 
Customize your flight search to find flights from Champaign to Buenos Aires 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 July 11, 2026.
Use the filters below to find and compare flights from Champaign to Buenos Aires that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChampaignBuenos Aires

CMI - EZE

CMIEZE

Champaign University-Willard

Sun 12/20

8:43 pm-9:20 am

2 stops57h 37m

Buenos Aires Ministro Pistarini

Sun 1/17

10:05 pm-12:50 pm

2 stops17h 45m

$1,612

ChampaignBuenos Aires

CMI - EZE

CMIEZE

Champaign University-Willard

Sun 12/20

8:43 pm-7:20 am

2 stops55h 37m

Buenos Aires Ministro Pistarini

Sun 1/17

11:55 pm-8:54 am

2 stops35h 59m

$1,626

ChampaignBuenos Aires

CMI - EZE

CMIEZE

Champaign University-Willard

Sun 12/20

12:21 pm-7:25 am

2 stops16h 04m

Buenos Aires Ministro Pistarini

Sun 1/17

10:30 pm-9:17 pm

1 stop25h 47m

$2,020

ChampaignBuenos Aires

CMI - EZE

CMIEZE

Champaign University-Willard

Sun 12/20

6:00 am-8:40 am

2 stops23h 40m

Buenos Aires Ministro Pistarini

Sun 1/17

10:30 pm-3:01 pm

1 stop19h 31m

$2,072

ChampaignBuenos Aires

CMI - EZE

CMIEZE

Champaign University-Willard

Sun 12/20

6:40 am-8:30 am

1 stop22h 50m

Buenos Aires Ministro Pistarini

Sun 1/17

10:30 pm-9:17 pm

1 stop25h 47m

$2,313
Quickest round-trip

ChampaignBuenos Aires

CMI - EZE

CMIEZE

Champaign University-Willard

Sun 12/20

2:57 pm-8:30 am

1 stop14h 33m

Buenos Aires Ministro Pistarini

Sun 1/17

10:30 pm-3:01 pm

1 stop19h 31m

$2,366

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

When to book flights from Champaign to Buenos Aires

Are you open to changing your travel dates? Check out the ideal times to fly from Champaign to Buenos Aires according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Champaign to Buenos Aires (CMI to BUE) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Champaign to Buenos Aires

Fastest flight time

57h 37m

Direct flights

None
The fastest flight from Champaign to Buenos Aires takes 57h 37m
There are no direct flights from Champaign to Buenos Aires. There are no popular flight routes from Champaign to Buenos Aires.
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Frequently asked questions about flying from Champaign to Buenos Aires

  • How far is Champaign University-Willard to Buenos Aires by plane?

    The straight-line distance from Champaign University-Willard to Buenos Aires is 5504.2 mi. In terms of flight time, this usually takes a little over 57h 37m.

  • When did momondo last update prices for flights from Champaign University-Willard Airport to Buenos Aires?

    Prices for flights from Champaign University-Willard Airport to Buenos Aires refresh daily.

  • How old do you have to be to fly from Champaign University-Willard Airport to Buenos Aires?

    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 Champaign University-Willard Airport to Buenos Aires.

  • What documentation or ID do you need to fly to Buenos Aires?

    The necessary travel and health documents for your Buenos Aires trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Frequently asked questions about flying from Champaign to Buenos Aires

  • How do I get Price Alerts for flights from Champaign to Buenos Aires?

    Price Alerts will notify you by email when the price for flights to Buenos Aires from Champaign decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.

  • How can I save money on flights from Champaign to Buenos Aires with momondo?

    Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

  • 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 Champaign to Buenos Aires?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Champaign to Buenos Aires. momondo saves you time and could save you money on your trip.

Can I find flights from Champaign to Buenos Aires with flexible booking policies on momondo?

Flights from Champaign to Buenos Aires with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Champaign to Buenos Aires?

momondo provides multiple filters to help you find the best flight to Buenos Aires from Champaign. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are simply researching potential flights to Buenos Aires, momondo offers a useful price alert feature which will track prices for flights to Buenos Aires from Champaign and alert you when they change.

An easier way to manage your Buenos Aires trip

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Find better results for your trip to Argentina

Fly into one of these airports located in Buenos Aires

Airports listed have a maximum distance of 17.0 mi from Buenos Aires
Buenos Aires Jorge Newbery Airport
Buenos Aires Ministro Pistarini Airport