Cheap flights from Baltimore to Buenos Aires from $680 BWI → EZE
Baltimore/Wash International Thurgood Marshall Airport (BWI) → Ministro Pistarini Airport (EZE)
The cheapest return found recently is $680 with United Airlines, 15 Nov – 20 Nov, found 2 days ago.
- Cheapest return found recently
- $680, 15 Nov to 20 Nov
- Usual return price
- $907 to $1,159
- Cheapest month to fly
- November 2026, return fares from $680 found in the last 7 days
Return
The cheapest return fare on each of 4 departure dates is usually $907 to $1,159.
Cheapest return found recently
$680
15 Nov – 20 Nov · United Airlines
Baltimore/Wash International Thurgood Marshall Airport (BWI) → Ministro Pistarini Airport (EZE)
Leaves 4:30 p.m. · Return leaves 11:55 p.m. · 39 h 39 min of travel, both ways together
out 1 stop, back 1 stop
found 2 days ago
Cheapest nonstop return
None seen yet.
Found recently, and the cheapest we hold
$680 15 Nov – 20 Novfound 2 days agoSee prices for these dates
It is also the cheapest return we hold, of any age.
What have prices looked like?
Over 40 days, 24 Sept to 11 Nov, the cheapest return we saw each day was $680 to $1,831.
At $680, the cheapest return found recently is at the low end of that range.
Those were the prices on those days, not today's.
Is this a good return price?
Compared with the cheapest return fare on each of 4 departure dates from 15 Nov to 30 Dec, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.
Could nearby dates be cheaper?
We hold no other 5-night return fares leaving within 3 days of 15 Nov to compare.
Every date we hold
4 fares on 4 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 15 Nov – 20 Nov | $680 | United Airlines | Baltimore/Wash International Thurgood Marshall Airport (BWI) → Ministro Pistarini Airport (EZE) | out 1 stop, back 1 stop | found 2 days ago | See prices for these dates |
| 28 Nov – 30 Nov | $982 | United Airlines | Baltimore/Wash International Thurgood Marshall Airport (BWI) → Ministro Pistarini Airport (EZE) | out 1 stop, back 3 stops | found 7 days ago | See prices for these dates |
| 15 Dec – 22 Dec | $1,158 | jetBlue | Baltimore/Wash International Thurgood Marshall Airport (BWI) → Ministro Pistarini Airport (EZE) | out 3 stops, back 2 stops | found 5 days ago | See prices for these dates |
| 30 Dec – 9 Jan 2027 | $1,160 | United Airlines | Baltimore/Wash International Thurgood Marshall Airport (BWI) → Ministro Pistarini Airport (EZE) | out 1 stop, back 3 stops | found 2 days ago | See prices for these dates |
Which month looks cheapest?
November 2026 is the cheapest month — from $680.
Airlines on the cheapest dates: United Airlines, jetBlue.
Premium cabin fares from Baltimore to Buenos Aires
We hold no premium economy, business or first-class fares for this route: we collect them for the busiest routes, and this one is not among them yet.
Today's prices for 15 Nov – 20 Nov in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Baltimore to Buenos Aires?
Return
The cheapest fares were 0 to 6 days before departure.
From the cheapest return each day between 24 Sept and 11 Nov (40 days), grouped by how many days ahead the flight left; one adult in economy.
Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.
Prices reflect recent searches — current fares may differ.
See these ranges as a table
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 0–6 days | $887 | $680 | Cheapest seen | 9 |
| 14–29 days | $982 | $982 | +11% | 9 |
| 30–59 days | $1,158 | $940 | +31% | 21 |
| 60–89 days | $1,501 | $1,433 | +69% | 17 |
Could a nearby airport be cheaper?
A different airport at either end can change the fare — sometimes a lot.
Return
Washington → Buenos Aires
57 km from Baltimore
$551
$129 less than flying from Baltimore
15 Nov – 20 Nov · DCA → EZE · out 1 stop, back 1 stop
found 2 days ago
Cheapest recent price on each route — round trip, per traveler in Economy. Distances are in a straight line.
Live price for these dates
The cheapest return found recently is for 15 Nov – 20 Nov. A live search on this page shows what those dates cost now, for one adult in economy.
Questions about this trip
How much is a return flight from Baltimore to Buenos Aires?
The cheapest return found recently is $680 with United Airlines, 15 Nov to 20 Nov, found 2 days ago. The cheapest return fare on each of 4 departure dates is usually $907 to $1,159.
What is the cheapest month to fly from Baltimore to Buenos Aires?
November 2026 is the cheapest month for a return, from $680, 15 Nov to 20 Nov, found 2 days ago.
How far ahead should I book a flight from Baltimore to Buenos Aires?
In 40 days of prices between 24 Sept and 11 Nov, return fares were cheapest 0 to 6 days before departure.
Which airlines have the cheapest flights from Baltimore to Buenos Aires?
Between 15 Nov and 30 Dec, United Airlines has the cheapest return on 3 of the 4 departure dates we hold, and jetBlue on 1.
Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work