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Cheap flights from Champaign to Buenos Aires from $843

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Champaign to Buenos Aires departing on 4/24. 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 Champaign to Buenos Aires

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
5:45 am - 8:00 am
CMI
-
EZE
24h 15m
2 stops
United Airlines Logo
9:00 pm - 5:52 pm
EZE
-
CMI
22h 52m
2 stops
$1,306United Airlines
Fri, May 8 - Fri, May 15
United Airlines Logo
9:49 am - 8:00 am
CMI
-
EZE
20h 11m
2 stops
United Airlines Logo
9:00 pm - 12:05 am
EZE
-
CMI
29h 05m
2 stops
$1,347United Airlines
Fri, Aug 28 - Tue, Sep 1
United Airlines Logo
5:45 am - 8:00 am
CMI
-
EZE
24h 15m
3 stops
United Airlines Logo
9:00 pm - 5:28 pm
EZE
-
CMI
22h 28m
2 stops
$2,877United Airlines
Fri, Aug 28 - Tue, Sep 1
Multiple Airlines Logo
6:55 pm - 10:45 am
CMI
-
EZE
37h 50m
3 stops
Multiple Airlines Logo
12:25 pm - 6:24 pm
EZE
-
CMI
31h 59m
3 stops
$3,327Multiple Airlines
Fri, May 8 - Fri, May 15
United Airlines Logo
9:49 am - 8:00 am
CMI
-
EZE
20h 11m
3 stops
United Airlines Logo
9:00 pm - 5:52 pm
EZE
-
CMI
22h 52m
2 stops
$6,946United Airlines
Fri, May 8 - Fri, May 15

United Airlines flights from Champaign to Buenos Aires

Our best United Airlines deals on Champaign to Buenos Aires flight tickets
United Airlines
May 8
CMI5:45 amChampaign University-Willard
24h 15m
2 stops
EZE8:00 amBuenos Aires Ministro Pistarini
May 15
EZE9:00 pmBuenos Aires Ministro Pistarini
22h 52m
2 stops
CMI5:52 pmChampaign University-Willard
$1,306
United Airlines
Aug 28
CMI9:49 amChampaign University-Willard
20h 11m
2 stops
EZE8:00 amBuenos Aires Ministro Pistarini
Sep 1
EZE9:00 pmBuenos Aires Ministro Pistarini
29h 05m
2 stops
CMI12:05 amChampaign University-Willard
$1,347
United Airlines
Aug 28
CMI5:45 amChampaign University-Willard
24h 15m
3 stops
EZE8:00 amBuenos Aires Ministro Pistarini
Sep 1
EZE9:00 pmBuenos Aires Ministro Pistarini
22h 28m
2 stops
CMI5:28 pmChampaign University-Willard
$2,877

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 March 25, 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

Fri 5/8

5:45 am-8:00 am

2 stops24h 15m

Buenos Aires Ministro Pistarini

Fri 5/15

9:00 pm-5:52 pm

2 stops22h 52m

$1,306

ChampaignBuenos Aires

CMI - EZE

CMIEZE

Champaign University-Willard

Fri 8/28

9:49 am-8:00 am

2 stops20h 11m

Buenos Aires Ministro Pistarini

Tue 9/1

9:00 pm-12:05 am

2 stops29h 05m

$1,347

ChampaignBuenos Aires

CMI - EZE

CMIEZE

Champaign University-Willard

Fri 8/28

5:45 am-8:00 am

3 stops24h 15m

Buenos Aires Ministro Pistarini

Tue 9/1

9:00 pm-5:28 pm

2 stops22h 28m

$2,877

ChampaignBuenos Aires

CMI - EZE

CMIEZE

Champaign University-Willard

Fri 5/8

6:55 pm-10:45 am

3 stops37h 50m

Buenos Aires Ministro Pistarini

Fri 5/15

12:25 pm-6:24 pm

3 stops31h 59m

$3,327
Quickest round-trip

ChampaignBuenos Aires

CMI - EZE

CMIEZE

Champaign University-Willard

Fri 5/8

9:49 am-8:00 am

3 stops20h 11m

Buenos Aires Ministro Pistarini

Fri 5/15

9:00 pm-5:52 pm

2 stops22h 52m

$6,946
Cheapest one-way

ChampaignBuenos Aires

CMI - EZE

CMIEZE

Champaign University-Willard

Fri 4/24

7:00 am-6:10 am

2 stops21h 10m

$843

ChampaignBuenos Aires

CMI - EZE

CMIEZE

Champaign University-Willard

Sun 4/26

7:00 am-8:50 am

2 stops23h 50m

$1,533

ChampaignBuenos Aires

CMI - EZE

CMIEZE

Champaign University-Willard

Sun 4/26

6:05 am-7:15 am

2 stops23h 10m

$2,708

ChampaignBuenos Aires

CMI - EZE

CMIEZE

Champaign University-Willard

Fri 4/24

6:58 pm-10:45 am

3 stops61h 47m

$2,843

ChampaignBuenos Aires

CMI - EZE

CMIEZE

Champaign University-Willard

Sat 5/2

6:58 pm-10:45 am

3 stops37h 47m

$3,366

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 resultsSorted by cheapest first
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See travel insights to Buenos Aires from

How to get the cheapest flight ticket from Champaign to Buenos Aires

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Champaign University-Willard to Buenos Aires?

American Airlines and British Airways are the most popular carriers operating from Champaign University-Willard to Buenos Aires

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

20h 11m

Direct flights

None
The fastest flight from Champaign to Buenos Aires takes 20h 11m
There are no direct flights from Champaign to Buenos Aires. There are no popular flight routes from Champaign to Buenos Aires.
Search flight deals

  • 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 20h 11m.

  • 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.

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.

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1 adult
Fri 4/24
Fri 5/1
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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