How popular is this Portland, Maine to Key Largo flight route?

Within the past month, 1 users have taken a look at flights from Portland to Key Largo.

What are the cheapest airlines to fly from Portland, Maine to Key Largo one-way?

One-way options have recently been found by users for as low as $108 on American Airlines. Other airlines that offer cheap prices include United Airlines from $108 and Southwest from $108 one-way.

In terms of precipitation, rainfall in Key Largo ranges from 1.6 - 9.9 inches per month. September is typically the wettest month, when rainfall can reach 9.9 in. January is typically the driest time to visit Key Largo when rainfall is around 1.6 in.

If weather is an important factor for your trip to Key Largo, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 68.0 F).

What are the most popular airlines that fly from Portland, Maine to Key Largo?

Consider American Airlines, Delta or Southwest when booking your flight. These represent the most popular airlines when flying from Portland, Maine to Key Largo.

What airport do you fly from for flights from Portland to Key Largo?

Located just 2.9 mi from the city center, Portland is the airport most travelers will use when flying to Key Largo from Portland. Booking flights from Portland (PWM) to Key Largo should be relatively easy as there are 0 daily outbound flights to Key Largo from 6 different airlines.

Can I find deals for flights from Portland to Key Largo that include hotel bookings?

Yes. In addition to deals on Portland to Key Largo flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Portland to Key Largo?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Key Largo.

Can I find deals for business class flights from Portland to Key Largo?

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

Find Cheap Flights from Portland, ME to Key Largo

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Find flight deals from Portland to Key Largo

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Popular in	November
Cheapest in	June
Average price	$424

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Highest demand for flights based on searches. 3% potential increase in price ($16 potential increase over avg. RT price).

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Cheapest flight prices on average. 1% potential price decrease ($9 potential savings vs. average RT price).

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Average for round-trip flights in October 2026

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Everything you need to know about your flight from Portland to Key Largo

What is the cheapest time of day to fly from PWM to KE9?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Portland, Maine to Key Largo as you normally would.

Reviews of airlines servicing Key Largo

Read reviews from past customers who have flown Southwest,Delta, andUnited Airlines from Portland to Key Largo. 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.

Southwest

7.9

Good

4,227 reviews

Reviews

1 / 20

8.0

Excellent

Patricia,Oct 2026

DAL - TPA

I love flying southwest, Both flights were packed full full - so not room for all carry one and bags had to be checked but still good flights.

Southwest

7.9

Good

4,227 reviews

Southwest

7.9

Good

4,227 reviews

Reviews

1 / 20

8.0

Excellent

Patricia,Oct 2026

DAL - TPA

I love flying southwest, Both flights were packed full full - so not room for all carry one and bags had to be checked but still good flights.

Delta

7.8

Good

8,654 reviews

Southwest

7.9

Good

4,227 reviews

Reviews

1 / 20

8.0

Excellent

Patricia,Oct 2026

DAL - TPA

I love flying southwest, Both flights were packed full full - so not room for all carry one and bags had to be checked but still good flights.

United Airlines

7.4

Good

10,331 reviews

Southwest

7.9

Good

4,227 reviews

Reviews

1 / 20

8.0

Excellent

Patricia,Oct 2026

DAL - TPA

I love flying southwest, Both flights were packed full full - so not room for all carry one and bags had to be checked but still good flights.

American Airlines

7.0

Good

12,152 reviews

Southwest

7.9

Good

4,227 reviews

Reviews

1 / 20

8.0

Excellent

Patricia,Oct 2026

DAL - TPA

I love flying southwest, Both flights were packed full full - so not room for all carry one and bags had to be checked but still good flights.

Related info for your journey

What airport do you fly from for flights from Portland to Key Largo?
Located just 2.9 mi from the city center, Portland is the airport most travelers will use when flying to Key Largo from Portland. Booking flights from Portland (PWM) to Key Largo should be relatively easy as there are 0 daily outbound flights to Key Largo from 6 different airlines.
How popular is this Portland, Maine to Key Largo flight route?
Within the past month, 1 users have taken a look at flights from Portland to Key Largo.
What are the cheapest airlines to fly from Portland, Maine to Key Largo one-way?
One-way options have recently been found by users for as low as $108 on American Airlines. Other airlines that offer cheap prices include United Airlines from $108 and Southwest from $108 one-way.
Can I find deals for flights from Portland to Key Largo that include hotel bookings?
Yes. In addition to deals on Portland to Key Largo flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Portland to Key Largo?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Key Largo.
Can I find deals for business class flights from Portland to Key Largo?
Yes. Cheapflights offers flight deals from Portland to Key Largo by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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Top 6 airlines flying from Portland to Key Largo

Airline	Cheapest	Average	Flexibility	On-time
Breeze Airways	Cheapest$102	Average$273	FlexibilityNo cancel fee	On-timeN/A
Delta	Cheapest$173	Average$428	FlexibilityNo cancel fee	On-timeN/A
JetBlue	Cheapest$209	Average$381	FlexibilityNo cancel fee	On-time62%
American Airlines	Cheapest$215	Average$430	FlexibilityNo cancel fee	On-time71%
Southwest	Cheapest$216	Average$436	FlexibilityNo cancel fee	On-time63%
United Airlines	Cheapest$216	Average$454	FlexibilityNo cancel fee	On-time69%

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Cheap flights from Portland, ME (PWM) to Key Largo, FL

Find cheap flights from Portland to Key Largo with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Find flight deals from Portland to Key Largo

Most accurate provider

Most trusted provider

Popular in

Cheapest in

Average price

Cheapflights Insights

What is the cheapest time of day to fly from PWM to KE9?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Portland, Maine to Key Largo as you normally would.

Reviews of airlines servicing Key Largo

Read reviews from past customers who have flown Southwest,Delta, andUnited Airlines from Portland to Key Largo. 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

What airport do you fly from for flights from Portland to Key Largo?

How popular is this Portland, Maine to Key Largo flight route?

What are the cheapest airlines to fly from Portland, Maine to Key Largo one-way?

Can I find deals for flights from Portland to Key Largo that include hotel bookings?

How can I find direct flights from Portland to Key Largo?

Can I find deals for business class flights from Portland to Key Largo?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Portland to Key Largo

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

Complete your trip

Complete your trip to Key Largo by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Portland to Key Largo by cabin class

Find flights from Portland to Key Largo, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Portland and Key Largo flights

Browse other Portland and Key Largo flight options. Last updated on October 10, 2026.

Other flights from Portland

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Portland to Key Largo flights

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Top 6 airlines flying from Portland to Key Largo

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