The cheapest times to fly from BWI to ZOS are

  • January 1st to March 25th (except the week of March 5th)
  • August 20th to September 2nd
  • September 24th to October 7th
  • November 12th to December 2nd

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from BWI to ZOS is late September. Prices can be as high as $2681 for Friday flights during mid to late September, or as low as $1040 for Wednesday flights around late September.


When to Fly to Osorno

Flying from Baltimore, MD (BWI) to Osorno (ZOS) will usually cost between $1078 to $1564 per person if booking more than four weeks in advance. On average the very cheapest time to fly is late September with an average ticket price of $1076. Due to high demand the most expensive time to fly is mid to late September, with an average price of $1892. Planning your trip to low-cost times can easily save you $816 on economy flights and even more on first-class flights. Generally, any price below $1122 can be considered a good price for a round-trip BWI to ZOS flight.

See below for a graph of average weekly prices for the BWI to ZOS route. All prices are for round-trip tickets in USD.

BWI to ZOS Flight Prices

Compared to other flights, the BWI to ZOS flight is slightly more expensive than the average and costs less than the average flight leaving from Baltimore. The average price per mile (for a direct flight) is $0.13, which is far below average.


Flight Prices by Day of the Week

Wednesday is usually the cheapest day to depart and return on this flight. Fridays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $271 (21%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Wednesday and returning a week later will cost an average of $1084. Return trip prices are from the ZOS to BWI flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from BWI to ZOS can generally find a 2-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 10 hour 55 minutes may not be realistic.


Alternative Nearby Airports

Champion Traveler tells you which airports are nearby and whether tickets might be cheaper alternative airports nearby. Sometimes it’s worth it to fly into a closer airport and then commute to your destination. Remember that there is not usually a nonstop flight from BWI to ZOS while comparing.

Destination alternative #1: Las Marias Airport (ZAL) in Valdivia

  • 57 miles (92 km) away from ZOS
  • Usually 3.88% less expensive than ZOS
  • 2-layover flights available

See BWI to ZAL flights

Destination alternative #2: El Tepual International Airport (PMC) in Puerto Montt

  • 57 miles (92 km) away from ZOS
  • Usually 2.05% less expensive than ZOS
  • 2-layover flights available

See BWI to PMC flights


Flight Hacking BWI to ZOS

Flight hacking is when you book two tickets instead of a layover, sometimes with different airlines. You will need to either bring only a carry-on bag (highly recommended) or leave yourself plenty of time to go through security again. Flight hacking is completely allowed, but airlines don’t always tell you the cheapest way to get from BWI to ZOS — but Champion Traveler does!

Hack #1: Santiago (BWI > SCL > ZOS)

  • Price for both tickets: $1068
  • Average savings: $54 (4.81%)

See BWI to SCL flights


Flight Questions Answered

Still have questions about flying from BWI to ZOS? We’ve got answers.

Which airlines fly this route?

You can find 6 major airlines flying this route most often: Air Canada, American, Delta, LATAM, Turkish Airlines, United, and potentially more during busy seasons.

How far away is it from Canal Bajo Carlos Hott Siebert Airport to Baltimore/Washington International Thurgood Marshall Airport?

The distance between the two airports is roughly 5516 miles or 8877 kilometers.

How long does it take to fly from BWI to ZOS?

The real-world flight time for a nonstop BWI to ZOS flight is about 10 hour 55 minutes.

How many flights go between Baltimore, MD and Osorno?

It depends on the day of the week and the date, but a typical day might have around 32 available flights from BWI to ZOS.


Airport Location Info


Departing Airport

Origination code BWI
Origination airport name Baltimore/Washington International Thurgood Marshall Airport
City Baltimore, MD
Country the United States
Latitude 39.2
Longitude -76.7

Return Airport

Destination code ZOS
Destination airport name Canal Bajo Carlos Hott Siebert Airport
City Osorno
Country Chile
Latitude -40.6
Longitude -73.1


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.