What are the cheapest airlines flying from Baltimore to Buenos Aires round-trip?

According to our current data, United Airlines ($625), Delta ($627), and LATAM Airlines ($634) offers the cheapest pricing from Baltimore to Buenos Aires. United Airlines is 43% cheaper than the average price of flights available within the next 90 days to this destination.

What are the cheapest airlines to fly from Baltimore to Buenos Aires one-way?

One-way options have recently been found by users for as low as $269 on Delta. Other airlines that offer cheap prices include LATAM Airlines from $273 and Copa Airlines from $285 one-way.

What is the cheapest day to fly from Baltimore to Buenos Aires?

Travelers seeking maximum savings on their Baltimore to Buenos Aires flight should consider departing on Tuesday at noon when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Buenos Aires ranges from 2.0 - 3.9 inches per month. January is typically the wettest month, when rainfall can reach 3.9 in. June is typically the driest time to visit Buenos Aires when rainfall is around 2.0 in.

If weather is an important factor for your trip to Buenos Aires, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of June, when temperatures are typically at their lowest (around 51.8 F).

What are the most popular airlines that fly from Baltimore to Buenos Aires?

When booking a flight from Baltimore to Buenos Aires, you may want to consider flying on American Airlines, Copa Airlines or Delta as they are the most popular for this route.

What is the cheapest day to fly round-trip from Baltimore to Buenos Aires?

Sunday is generally a great day to depart. Flying on this day could help you save up to 33%.

How far in advance should I book a flight from Baltimore to Buenos Aires?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 51 days in advance, which can save you up to 5% on flights from Baltimore to Buenos Aires compared to booking the week you need them. Waiting 51 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $627. For sooner than that we have options available in the next 3 days from $882.

What is the cheapest month to fly from Baltimore to Buenos Aires?

Flights from Baltimore to Buenos Aires lean towards being more expensive in December. Prices are generally better when you fly from Baltimore to Buenos Aires in September, with the cheapest ticket starting at $610.

What airport do you fly from for flights from Baltimore to Buenos Aires?

Located just 8.5 mi from the city center, Baltimore/Washington is the airport most travelers will use when flying to Buenos Aires from Baltimore. Booking flights from Baltimore/Washington (BWI) to Buenos Aires should be relatively easy as there are 0 daily outbound flights to Buenos Aires from 4 different airlines.

Can I find deals for flights from Baltimore to Buenos Aires that include hotel bookings?

Yes. In addition to deals on Baltimore to Buenos Aires flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Baltimore to Buenos Aires?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Baltimore to Buenos Aires.

Can I find deals for business class flights from Baltimore to Buenos Aires?

Yes. Cheapflights offers flight deals from Baltimore to Buenos Aires by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$269+ Flights from Baltimore to Buenos Aires

Q: How much does it cost to fly round-trip from Baltimore to Buenos Aires?

Airfare is typical for this route at the moment. Baltimore to Buenos Aires flights typically cost between $450 and $812 in September. The cheapest round-trip price found within the last 3 days was $625 on United Airlines (Sep 11-Sep 18).

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Baltimore to Buenos Aires with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Baltimore to Buenos Aires

Round-trip from	$625 (United Airlines)
One-way from	$269 (Delta)
Popular in	December
Cheapest in	August
Average price	$1,353

From Baltimore/Washington to Buenos Aires (BUE)

Search Deals

One-way flight from Baltimore/Washington to Buenos Aires (BUE)

Search Deals

Highest demand for flights based on searches. 26% potential increase in price ($398 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 8% potential price decrease ($90 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in July 2025

Search Deals

Find flight deals from Baltimore to Buenos Aires

Cheapest flights from Baltimore to Buenos Aires
Explore the most affordable flight options available from Baltimore to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.

Thu 9/116:00 amBWI - EZE

1 stop25h 00mUnited Airlines

Thu 9/189:00 pmEZE - BWI

1 stop20h 17mUnited Airlines

Deal found 7/28

$625

Wed 8/2712:17 pmBWI - EZE

1 stop20h 28mDelta

Sat 9/68:10 pmEZE - BWI

1 stop17h 20mDelta

Deal found 7/29

$627

Mon 9/227:25 pmBWI - AEP

2 stops19h 40mLATAM Airlines

Mon 10/135:00 pmAEP - BWI

2 stops19h 21mLATAM Airlines

Deal found 7/30

$632

Mon 10/207:45 pmBWI - EZE

2 stops17h 10mLATAM Airlines

Thu 10/307:55 amEZE - BWI

2 stops17h 46mLATAM Airlines

Deal found 7/30

$632

Mon 8/256:00 amBWI - EZE

2 stops24h 25mAmerican Airlines

Fri 9/58:40 pmEZE - BWI

2 stops25h 12mAmerican Airlines

Deal found 7/29

$644

Mon 8/184:49 pmBWI - EZE

1 stop28h 19mCopa Airlines

Tue 9/22:33 pmEZE - BWI

1 stop25h 35mCopa Airlines

Deal found 7/28

$651

Mon 9/14:49 pmBWI - EZE

1 stop28h 19mMultiple Airlines

Mon 9/85:35 amEZE - BWI

2 stops18h 57mMultiple Airlines

Deal found 7/27

$777

Mon 9/2211:02 amBWI - AEP

3 stops44h 18mMultiple Airlines

Mon 10/1310:15 amAEP - BWI

3 stops35h 47mMultiple Airlines

Deal found 7/30

$809

Best flights from Baltimore to Buenos Aires
Discover carefully curated flight deals from Baltimore to Buenos Aires that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 30, 2025.

Thu 9/116:00 amBWI - EZE

1 stop25h 00mUnited Airlines

Thu 9/189:00 pmEZE - BWI

1 stop20h 17mUnited Airlines

Deal found 7/28

$625

Wed 8/276:25 pmBWI - EZE

1 stop14h 20mDelta

Sun 9/78:10 pmEZE - BWI

1 stop23h 42mDelta

Deal found 7/29

$627

Mon 9/227:25 pmBWI - AEP

2 stops19h 40mLATAM Airlines

Mon 10/135:00 pmAEP - BWI

2 stops19h 21mLATAM Airlines

Deal found 7/30

$632

Mon 8/256:00 amBWI - EZE

2 stops24h 25mAmerican Airlines

Fri 9/58:40 pmEZE - BWI

2 stops25h 12mAmerican Airlines

Deal found 7/29

$644

Mon 8/184:49 pmBWI - EZE

1 stop28h 19mCopa Airlines

Tue 9/22:33 pmEZE - BWI

1 stop25h 35mCopa Airlines

Deal found 7/28

$651

Mon 9/14:49 pmBWI - EZE

1 stop28h 19mMultiple Airlines

Mon 9/85:35 amEZE - BWI

2 stops18h 57mMultiple Airlines

Deal found 7/27

$777

Mon 10/207:45 pmBWI - EZE

2 stops17h 10mLATAM Airlines

Thu 10/307:55 amEZE - BWI

2 stops17h 46mLATAM Airlines

Deal found 7/30

$632

Mon 9/2211:02 amBWI - AEP

3 stops44h 18mMultiple Airlines

Mon 10/1310:15 amAEP - BWI

3 stops35h 47mMultiple Airlines

Deal found 7/30

$809

Last-minute flights from Baltimore to Buenos Aires
Discover last-minute flight deals from Baltimore to Buenos Aires. Data last updated July 30, 2025 and is based on user searches.

Mon 8/46:25 amBWI - AEP

3 stops27h 55mMultiple Airlines

Wed 8/1312:05 amAEP - BWI

3 stops24h 54mMultiple Airlines

Deal found 7/27

$1,254

Mon 8/411:14 amBWI - EZE

2 stops17h 31mMultiple Airlines

Wed 8/132:30 amEZE - BWI

2 stops22h 29mMultiple Airlines

Deal found 7/27

$1,423

Thu 8/77:00 pmBWI - EZE

1 stop13h 00mAmerican Airlines

Mon 8/118:45 pmEZE - BWI

1 stop22h 25mAmerican Airlines

Deal found 7/30

$1,160

Fri 8/87:52 pmBWI - EZE

1 stop12h 53mDelta

Tue 8/128:10 pmEZE - BWI

1 stop14h 12mDelta

Deal found 7/28

$860

Fri 8/82:54 pmBWI - EZE

1 stop16h 06mUnited Airlines

Fri 11/1411:55 pmEZE - BWI

1 stop18h 07mUnited Airlines

Deal found 7/28

$952

Fri 8/87:52 pmBWI - EZE

2 stops33h 03mLATAM Airlines

Tue 8/127:30 amEZE - BWI

2 stops17h 53mLATAM Airlines

Deal found 7/28

$954

Fri 8/87:52 pmBWI - AEP

2 stops19h 13mLATAM Airlines

Tue 8/125:05 pmAEP - BWI

2 stops41h 17mLATAM Airlines

Deal found 7/28

$1,193

Sat 8/99:20 pmBWI - EZE

2 stops35h 45mIberia

Tue 11/111:00 pmEZE - BWI

2 stops31h 45mIberia

Deal found 7/28

$2,695

Mon 8/114:49 pmBWI - EZE

1 stop30h 55mMultiple Airlines

Mon 8/259:15 pmEZE - BWI

2 stops24h 47mMultiple Airlines

Deal found 7/28

$797

Mon 8/187:29 pmBWI - AEP

2 stops22h 06mLATAM Airlines

Fri 8/295:05 pmAEP - BWI

2 stops26h 19mLATAM Airlines

Deal found 7/29

$639

Mon 8/184:49 pmBWI - EZE

1 stop28h 19mCopa Airlines

Tue 9/22:33 pmEZE - BWI

1 stop25h 35mCopa Airlines

Deal found 7/28

$651

Mon 8/184:49 pmBWI - AEP

2 stops22h 16mMultiple Airlines

Tue 9/28:30 pmAEP - BWI

2 stops19h 38mMultiple Airlines

Deal found 7/28

$967

One-way flights from Baltimore to Buenos Aires
Search for one-way flight options from Baltimore to Buenos Aires. Find affordable one-way fares based on user searches. Data last updated July 30, 2025.

Sun 9/71:35 pmBWI - EZE

1 stop19h 10mDelta

Deal found 7/29

$269

Sat 9/67:29 pmBWI - AEP

2 stops19h 36mLATAM Airlines

Deal found 7/29

$273

Fri 9/512:17 pmBWI - EZE

2 stops16h 53mLATAM Airlines

Deal found 7/29

$273

Mon 9/224:49 pmBWI - EZE

1 stop34h 08mCopa Airlines

Deal found 7/28

$285

Mon 9/86:45 amBWI - AEP

3 stops59h 45mMultiple Airlines

Deal found 7/29

$289

Thu 9/46:40 pmBWI - EZE

2 stops36h 20mUnited Airlines

Deal found 7/29

$295

Sat 9/63:00 pmBWI - EZE

2 stops18h 15mAmerican Airlines

Deal found 7/29

$340

Thu 8/285:30 pmBWI - EZE

3 stops50h 20mMultiple Airlines

Deal found 7/29

$343

Fri 9/52:46 pmBWI - EZE

3 stops42h 49mBritish Airways

Deal found 7/29

$4,061

Cheapflights Fare Finder

Use the filters below to find and compare flights from Baltimore to Buenos Aires that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BaltimoreBuenos Aires

BWI - EZE

BWIEZE

Baltimore/Washington

Thu 9/11

6:00 am-8:00 am

1 stop25h 00m

Buenos Aires Ministro Pistarini

Thu 9/18

9:00 pm-4:17 pm

1 stop20h 17m

$625

BaltimoreBuenos Aires

BWI - EZE

BWIEZE

Baltimore/Washington

Wed 8/27

6:25 pm-9:45 am

1 stop14h 20m

Buenos Aires Ministro Pistarini

Sun 9/7

8:10 pm-6:52 pm

1 stop23h 42m

$627

BaltimoreBuenos Aires

BWI - AEP

BWIAEP

Baltimore/Washington

Mon 9/22

7:25 pm-4:05 pm

2 stops19h 40m

Buenos Aires Jorge Newbery

Mon 10/13

5:00 pm-11:21 am

2 stops19h 21m

$632

BaltimoreBuenos Aires

BWI - EZE

BWIEZE

Baltimore/Washington

Mon 10/20

7:45 pm-1:55 pm

2 stops17h 10m

Buenos Aires Ministro Pistarini

Thu 10/30

7:55 am-12:41 am

2 stops17h 46m

$632

BaltimoreBuenos Aires

BWI - EZE

BWIEZE

Baltimore/Washington

Mon 8/25

6:00 am-7:25 am

2 stops24h 25m

Buenos Aires Ministro Pistarini

Fri 9/5

8:40 pm-8:52 pm

2 stops25h 12m

$644

BaltimoreBuenos Aires

BWI - EZE

BWIEZE

Baltimore/Washington

Mon 8/18

4:49 pm-10:08 pm

1 stop28h 19m

Buenos Aires Ministro Pistarini

Tue 9/2

2:33 pm-3:08 pm

1 stop25h 35m

$651

BaltimoreBuenos Aires

BWI - EZE

BWIEZE

Baltimore/Washington

Mon 9/1

4:49 pm-10:08 pm

1 stop28h 19m

Buenos Aires Ministro Pistarini

Mon 9/8

5:35 am-11:32 pm

2 stops18h 57m

$777

BaltimoreBuenos Aires

BWI - AEP

BWIAEP

Baltimore/Washington

Mon 9/22

11:02 am-8:20 am

3 stops44h 18m

Buenos Aires Jorge Newbery

Mon 10/13

10:15 am-9:02 pm

3 stops35h 47m

$809

BaltimoreBuenos Aires

BWI - EZE

BWIEZE

Baltimore/Washington

Sun 9/7

1:35 pm-9:45 am

1 stop19h 10m

$269

BaltimoreBuenos Aires

BWI - AEP

BWIAEP

Baltimore/Washington

Sat 9/6

7:29 pm-4:05 pm

2 stops19h 36m

$273

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 17 results

Best time to book a flight from Baltimore to Buenos Aires

Have a flexible travel schedule? Discover the best time to fly to Buenos Aires from Baltimore with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Baltimore to Buenos Aires

What is the cheapest month to book a flight from Baltimore to Buenos Aires?

Currently, April is the cheapest month in which you can book a flight from Baltimore to Buenos Aires (average of $795). Flying from Baltimore to Buenos Aires in December is currently the most expensive (average of $1,260). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from BWI to BUE?

It’s typically best to fly out from Baltimore to Buenos Aires in the evening. Doing so could potentially save you 24% on the flight price compared to flying at noon, which is usually more expensive.

How much does it cost to fly round-trip from Baltimore to Buenos Aires?

Reviews of airlines servicing Buenos Aires

Read reviews from past customers who have flown Delta, LATAM Airlines, and Copa Airlines from Baltimore to Buenos Aires. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,980 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,980 reviews

Delta

8.0

Very good

7,980 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

LATAM Airlines

7.5

Good

1,822 reviews

Delta

8.0

Very good

7,980 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Copa Airlines

7.5

Good

1,493 reviews

Delta

8.0

Very good

7,980 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

United Airlines

7.4

Good

8,896 reviews

Delta

8.0

Very good

7,980 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,980 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

What airport do you fly from for flights from Baltimore to Buenos Aires?
Located just 8.5 mi from the city center, Baltimore/Washington is the airport most travelers will use when flying to Buenos Aires from Baltimore. Booking flights from Baltimore/Washington (BWI) to Buenos Aires should be relatively easy as there are 0 daily outbound flights to Buenos Aires from 4 different airlines.
What are the cheapest airlines flying from Baltimore to Buenos Aires round-trip?
According to our current data, United Airlines ($625), Delta ($627), and LATAM Airlines ($634) offers the cheapest pricing from Baltimore to Buenos Aires. United Airlines is 43% cheaper than the average price of flights available within the next 90 days to this destination.
What are the cheapest airlines to fly from Baltimore to Buenos Aires one-way?
One-way options have recently been found by users for as low as $269 on Delta. Other airlines that offer cheap prices include LATAM Airlines from $273 and Copa Airlines from $285 one-way.
Can I find deals for flights from Baltimore to Buenos Aires that include hotel bookings?
Yes. In addition to deals on Baltimore to Buenos Aires flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Baltimore to Buenos Aires?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Baltimore to Buenos Aires.
Can I find deals for business class flights from Baltimore to Buenos Aires?
Yes. Cheapflights offers flight deals from Baltimore to Buenos Aires by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Baltimore to Buenos Aires?
Currently, April is the cheapest month in which you can book a flight from Baltimore to Buenos Aires (average of $795). Flying from Baltimore to Buenos Aires in December is currently the most expensive (average of $1,260). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Top 4 airlines flying from Baltimore to Buenos Aires

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$629	Average$789	FlexibilityNo cancel fee	On-time69%
Delta	Cheapest$629	Average$1,070	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$653	Average$1,080	FlexibilityNo cancel fee	On-time71%
Copa Airlines	Cheapest$687	Average$821	FlexibilityNo cancel fee	On-time70%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$269+ Cheap flights from Baltimore (BWI) to Buenos Aires (BUE)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/7. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Baltimore to Buenos Aires with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Baltimore to Buenos Aires

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Baltimore to Buenos Aires

Cheapest flights from Baltimore to Buenos AiresExplore the most affordable flight options available from Baltimore to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.

Explore the most affordable flight options available from Baltimore to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Baltimore to Buenos Aires that are best for you.

Best time to book a flight from Baltimore to Buenos Aires

Have a flexible travel schedule? Discover the best time to fly to Buenos Aires from Baltimore with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Baltimore to Buenos Aires

What is the cheapest month to book a flight from Baltimore to Buenos Aires?

What is the cheapest time of day to fly from BWI to BUE?

Find hourly flight availability from Baltimore to Buenos Aires. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 30, 2025.

How much does it cost to fly round-trip from Baltimore to Buenos Aires?

Reviews of airlines servicing Buenos Aires

Read reviews from past customers who have flown Delta, LATAM Airlines, and Copa Airlines from Baltimore to Buenos Aires. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Baltimore to Buenos Aires. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly from for flights from Baltimore to Buenos Aires?

What are the cheapest airlines flying from Baltimore to Buenos Aires round-trip?

What are the cheapest airlines to fly from Baltimore to Buenos Aires one-way?

Can I find deals for flights from Baltimore to Buenos Aires that include hotel bookings?

How can I find direct flights from Baltimore to Buenos Aires?

Can I find deals for business class flights from Baltimore to Buenos Aires?

What is the cheapest month to book a flight from Baltimore to Buenos Aires?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Baltimore to Buenos Aires

See prices for flight routes from nearby airports that may be better suited for you.

Top 4 airlines flying from Baltimore to Buenos Aires

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Baltimore to Buenos Aires
Explore the most affordable flight options available from Baltimore to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.