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Key Largo

$97+ Cheap flights from Portland, ME (PWM) to Key Largo, FL

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 3/21. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — MIA
Feb 27 — Mar 61
Thu 2/27
Thu 3/6
1 adult, Economy
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The best prices from Portland to Key Largo are usually found in September or August, booked 27 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

Cheap flight deals from Portland to Key Largo

Keep the following information in mind while searching for Portland to Key Largo flight deals. Data was last updated February 22, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$269
(Mytrip)

One-way from

$97
(Mytrip)

Popular in

April

Cheapest in

September

Average price

$505
Provider with most accurate pricing for Portland-Miami flight deals.
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Provider most trusted by Cheapflights users for Portland-Miami flights.
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From Portland to Key Largo
Search Deals
One-way flight from Portland to Key Largo
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($105 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($28 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Find flight deals from Portland to Key Largo

Cheapest flights from Portland to Key Largo
Explore the most affordable flight options available from Portland to Key Largo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 22, 2025.

This Mytrip deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/106:18 pmPWM - MIA
3 stops26h 22mMultiple Airlines
Fri 3/149:43 amMIA - PWM
1 stop7h 27mMultiple Airlines
Deal found 2/21$269
This American Airlines deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/161:59 pmPWM - MIA
1 stop6h 15mAmerican Airlines
Tue 5/207:06 amMIA - PWM
1 stop8h 30mAmerican Airlines
Deal found 2/21$275
This Delta deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/104:30 pmPWM - MIA
1 stop6h 06mDelta
Sat 3/157:00 amMIA - PWM
1 stop5h 36mDelta
Deal found 2/22$282
This United Airlines deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/186:10 amPWM - MIA
1 stop7h 16mUnited Airlines
Thu 5/16:15 amMIA - PWM
2 stops11h 14mUnited Airlines
Deal found 2/21$286
This JetBlue deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/55:35 pmPWM - MIA
1 stop6h 16mJetBlue
Fri 4/112:08 pmMIA - PWM
1 stop8h 52mJetBlue
Deal found 2/20$300
This Southwest deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/315:50 amPWM - MIA
2 stops11h 50mSouthwest
Sat 4/57:30 amMIA - PWM
2 stops9h 30mSouthwest
Deal found 2/20$338

Find flights from Portland to Key Largo within your budget

Customize your flight search to find flights from Portland to Key Largo 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, Cheapflights users made 2,558,603 searches. Data last updated February 22, 2025.

Fly from

Portland

Fly to

Key Largo

Route

Depart

Return

Price

PortlandMiami

PWM - MIA

PWMMIA

Portland

Mon 3/10

6:18 pm-8:40 pm

3 stops26h 22m

Miami

Fri 3/14

9:43 am-5:10 pm

1 stop7h 27m

$269

PortlandMiami

PWM - MIA

PWMMIA

Portland

Fri 5/16

1:59 pm-8:14 pm

1 stop6h 15m

Miami

Tue 5/20

7:06 am-3:36 pm

1 stop8h 30m

$275

PortlandMiami

PWM - MIA

PWMMIA

Portland

Mon 3/10

4:30 pm-10:36 pm

1 stop6h 06m

Miami

Sat 3/15

7:00 am-12:36 pm

1 stop5h 36m

$282

PortlandMiami

PWM - MIA

PWMMIA

Portland

Tue 3/18

6:10 am-1:26 pm

1 stop7h 16m

Miami

Thu 5/1

6:15 am-5:29 pm

2 stops11h 14m

$286

PortlandMiami

PWM - MIA

PWMMIA

Portland

Sat 4/5

5:35 pm-11:51 pm

1 stop6h 16m

Miami

Fri 4/11

2:08 pm-11:00 pm

1 stop8h 52m

$300

PortlandMiami

PWM - MIA

PWMMIA

Portland

Mon 3/31

5:50 am-5:40 pm

2 stops11h 50m

Miami

Sat 4/5

7:30 am-5:00 pm

2 stops9h 30m

$338

PortlandMiami

PWM - MIA

PWMMIA

Portland

Fri 3/21

5:50 pm-3:34 pm

1 stop21h 44m

$97

PortlandMiami

PWM - MIA

PWMMIA

Portland

Tue 5/13

3:20 pm-10:32 pm

1 stop7h 12m

$98

PortlandMiami

PWM - MIA

PWMMIA

Portland

Mon 4/14

5:20 am-12:45 pm

1 stop7h 25m

$129

PortlandMiami

PWM - MIA

PWMMIA

Portland

Tue 5/13

5:30 am-4:16 pm

2 stops10h 46m

$174

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/22

Showing 1-10 of 11 results
1
2

Best time to book a flight from Portland to Key Largo

Have a flexible travel schedule? Discover the best time to fly to Key Largo from Portland 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.

Travel insights for flights from Portland to Key Largo

Get recent, data-driven insights about flights from Portland to Key Largo including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Portland, Maine to Key Largo?

Use this chart to determine the optimal time to book a round-trip flight from Portland to Key Largo. Price data was last updated on February 14, 2025.

Booking 27 days in advance of your planned departure date is, on average, the best time to get cheap flights from Portland, Maine to Key Largo. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Portland, Maine to Key Largo?

Currently, September is the cheapest month in which you can book a flight from Portland, Maine to Key Largo (average of $231). Flying from Portland, Maine to Key Largo in March is currently the most expensive (average of $289). 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 PWM to KE9?

Find hourly flight availability from Portland to Key Largo. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 22, 2025.

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.

Rainfall in Key Largo by month

Plan your trip to Key Largo by taking into account the average rainfall totals by month.

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.

Temperature in Key Largo by month

Plan your trip to Key Largo by taking into account the average temperature totals by month.

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).

Reviews of airlines servicing Key Largo

Get insights into the airlines that provide service to Key Largo. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Key Largo. Reviews last updated February 22, 2025.
Get a feel of what it's like to fly with Southwest, Delta and JetBlue from Portland to Key Largo by reading reviews from past customers. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,395 reviews

Entertainment

7.6

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.1

Boarding

8.2

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Southwest
8.1
Very good
4,395 reviews
Southwest
8.1
Very good
4,395 reviews

Entertainment

7.6

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.1

Boarding

8.2

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Delta
8.0
Very good
8,203 reviews
Southwest
8.1
Very good
4,395 reviews

Entertainment

7.6

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.1

Boarding

8.2

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

JetBlue
7.4
Good
3,068 reviews
Southwest
8.1
Very good
4,395 reviews

Entertainment

7.6

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.1

Boarding

8.2

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

United Airlines
7.4
Good
8,754 reviews
Southwest
8.1
Very good
4,395 reviews

Entertainment

7.6

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.1

Boarding

8.2

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,395 reviews

Entertainment

7.6

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.1

Boarding

8.2

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Related info for your journey

Find useful and relevant information for your journey from Portland to Key Largo. 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 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 5 different airlines.

  • 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 $98 on JetBlue. Other airlines that offer cheap prices include Delta from $129 and United Airlines from $174 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.

  • What is the cheapest month to book a flight from Portland, Maine to Key Largo?

    Currently, September is the cheapest month in which you can book a flight from Portland, Maine to Key Largo (average of $231). Flying from Portland, Maine to Key Largo in March is currently the most expensive (average of $289). 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

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Top 5 airlines flying from Portland to Key Largo

Discover the top 5 airlines that operate flights from Portland to Key Largo. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$194Average$379FlexibilityNo cancel feeOn-time62%
DeltaCheapest$216Average$386FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$217Average$430FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$281Average$513FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$317Average$550FlexibilityNo cancel feeOn-time63%
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