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Key Largo

$127+ Cheap flights from Portland (PDX) 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 3/3. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — MIA
Dec 26 — Jan 21
Fri 12/26
Fri 1/2
1 adult, Economy
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Cheapflights Tip: The best prices from Portland to Key Largo are usually found in September or August, booked 23 days in advance, depart on a Tuesday or Wednesday and return on a Friday

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 November 26, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$237
(Alaska Airlines)

One-way from

$127
(Cheapflightsfares)

Popular in

December

Cheapest in

September

Average price

$369
Provider with most accurate pricing for Portland-Miami flight deals.
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Provider most trusted by Cheapflights users for Portland-Miami flights.
Search Deals
From Portland to Key Largo
Search Deals
One-way flight from Portland to Key Largo
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($46 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in November 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 November 26, 2025.

This American Airlines deal was found by Cheapflights users on 11/24. 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.
Tue 12/910:45 pmPDX - MIA
Nonstop5h 34mAmerican Airlines
Tue 12/168:16 pmMIA - PDX
Nonstop6h 36mAmerican Airlines
Deal found 11/24$237
This Delta deal was found by Cheapflights users on 11/24. 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.
Tue 12/305:30 amPDX - MIA
1 stop9h 16mDelta
Mon 1/128:00 amMIA - PDX
1 stop11h 25mDelta
Deal found 11/24$239
This American Airlines deal was found by Cheapflights users on 11/25. 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.
Mon 12/1510:45 pmPDX - MIA
Nonstop5h 34mAmerican Airlines
Wed 1/76:00 amMIA - PDX
1 stop11h 48mAmerican Airlines
Deal found 11/25$252
This Delta deal was found by Cheapflights users on 11/26. 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.
Sat 12/1312:32 amPDX - MIA
1 stop10h 00mDelta
Wed 1/146:45 amMIA - PDX
1 stop8h 47mDelta
Deal found 11/26$257
This American Airlines deal was found by Cheapflights users on 11/24. 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.
Mon 12/1510:45 pmPDX - MIA
Nonstop5h 34mAmerican Airlines
Sat 12/209:21 pmMIA - PDX
Nonstop6h 38mAmerican Airlines
Deal found 11/24$258
This Southwest deal was found by Cheapflights users on 11/24. 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.
Tue 12/95:55 amPDX - MIA
2 stops10h 55mSouthwest
Tue 12/161:05 pmMIA - PDX
1 stop9h 15mSouthwest
Deal found 11/24$262
This Kiwi.com deal was found by Cheapflights users on 11/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/1412:51 pmPDX - MIA
2 stops27h 48mFrontier
Wed 1/1410:07 amMIA - PDX
1 stop27h 57mFrontier
Deal found 11/26$266
This American Airlines deal was found by Cheapflights users on 11/26. 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.
Sun 12/1410:45 pmPDX - MIA
Nonstop5h 34mAmerican Airlines
Wed 1/147:55 pmMIA - PDX
Nonstop6h 51mAmerican Airlines
Deal found 11/26$268
This Delta deal was found by Cheapflights users on 11/24. 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.
Wed 12/246:50 amPDX - MIA
1 stop7h 56mDelta
Wed 1/76:45 amMIA - PDX
1 stop8h 47mDelta
Deal found 11/24$274
This American Airlines deal was found by Cheapflights users on 11/26. 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.
Sat 12/610:45 pmPDX - MIA
Nonstop5h 34mAmerican Airlines
Fri 12/128:16 pmMIA - PDX
Nonstop6h 36mAmerican Airlines
Deal found 11/26$277

Cheapflights Fare Finder

 
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 November 26, 2025.
Use the filters below to find and compare flights from Portland to Key Largo that are best for you.

Fly from

Portland

Fly to

Key Largo

Route

Depart

Return

Price

PortlandMiami

PDX - MIA

PDXMIA

Portland

Mon 12/8

12:32 am-1:32 pm

1 stop10h 00m

Miami

Tue 12/16

6:05 pm-12:15 am

1 stop9h 10m

$257

PortlandMiami

PDX - MIA

PDXMIA

Portland

Tue 3/3

3:55 pm-10:24 am

2 stops15h 29m

Miami

Wed 3/11

8:05 am-4:43 pm

1 stop11h 38m

$257

PortlandMiami

PDX - MIA

PDXMIA

Portland

Mon 1/19

12:40 am-1:35 pm

1 stop9h 55m

Miami

Sat 2/7

6:43 am-6:50 pm

2 stops15h 07m

$257

PortlandMiami

PDX - MIA

PDXMIA

Portland

Wed 1/14

11:10 am-5:30 am

2 stops15h 20m

Miami

Thu 2/5

12:00 pm-7:13 pm

1 stop10h 13m

$257

PortlandMiami

PDX - MIA

PDXMIA

Portland

Thu 2/26

6:00 am-4:59 pm

1 stop7h 59m

Miami

Tue 3/10

4:44 pm-8:44 pm

Nonstop7h 00m

$262

PortlandMiami

PDX - MIA

PDXMIA

Portland

Tue 1/6

5:00 am-3:48 pm

1 stop7h 48m

Miami

Tue 1/13

9:05 am-6:10 pm

2 stops12h 05m

$262

PortlandMiami

PDX - MIA

PDXMIA

Portland

Tue 3/3

7:00 am-3:44 pm

Nonstop5h 44m

Miami

Fri 3/6

5:59 pm-8:49 am

1 stop17h 50m

$262

PortlandMiami

PDX - MIA

PDXMIA

Portland

Mon 3/2

7:00 am-3:44 pm

Nonstop5h 44m

Miami

Wed 3/11

5:59 pm-11:46 pm

1 stop8h 47m

$262

PortlandMiami

PDX - MIA

PDXMIA

Portland

Thu 2/26

6:00 am-4:59 pm

1 stop7h 59m

Miami

Thu 3/5

4:44 pm-8:44 pm

Nonstop7h 00m

$262

PortlandMiami

PDX - MIA

PDXMIA

Portland

Tue 3/3

7:57 pm-4:59 pm

1 stop18h 02m

Miami

Tue 3/10

4:44 pm-8:44 pm

Nonstop7h 00m

$262

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/25

Showing 1-10 of 23 results
1
2
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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.

Cheapflights Insights

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

How far ahead should I book a flight from Portland 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 November 21, 2025.

To ensure you get the cheapest price possible for a flight from Portland to Key Largo, you should look to book at least 23 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, June is the cheapest month in which you can book a flight from Portland to Key Largo (average of $108). Flying from Portland to Key Largo in March is currently the most expensive (average of $211). 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 PDX 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 November 26, 2025.

It’s typically best to fly out from Portland to Key Largo in the afternoon. Doing so could potentially save you 29% on the flight price compared to flying in the evening, which is usually more expensive.

What is the cheapest day to fly from Portland to Key Largo?

Use this chart to determine the cheapest time to fly round-trip from Portland to Key Largo. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Portland to Key Largo flight should consider departing on Sunday afternoons when fares are most often at their lowest. Monday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from Portland to Key Largo?

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 November 26, 2025.
Read through reviews of airlines operating flights from Portland to Key Largo, such as Alaska Airlines, Delta, and Hawaiian Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,363 reviews

Food

7.1

Crew

8.5

Overall

8.0

Boarding

8.1

Entertainment

7.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

LAX - LIH

The staff were exceptional! They all were kind, accommodating, and professional.
Alaska Airlines
8.0
Very good
11,363 reviews
Alaska Airlines
8.0
Very good
11,363 reviews

Food

7.1

Crew

8.5

Overall

8.0

Boarding

8.1

Entertainment

7.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

LAX - LIH

The staff were exceptional! They all were kind, accommodating, and professional.
Delta
7.9
Good
8,003 reviews
Alaska Airlines
8.0
Very good
11,363 reviews

Food

7.1

Crew

8.5

Overall

8.0

Boarding

8.1

Entertainment

7.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

LAX - LIH

The staff were exceptional! They all were kind, accommodating, and professional.
Hawaiian Airlines
7.8
Good
2,815 reviews
Alaska Airlines
8.0
Very good
11,363 reviews

Food

7.1

Crew

8.5

Overall

8.0

Boarding

8.1

Entertainment

7.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

LAX - LIH

The staff were exceptional! They all were kind, accommodating, and professional.
United Airlines
7.4
Good
9,050 reviews
Alaska Airlines
8.0
Very good
11,363 reviews

Food

7.1

Crew

8.5

Overall

8.0

Boarding

8.1

Entertainment

7.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

LAX - LIH

The staff were exceptional! They all were kind, accommodating, and professional.
American Airlines
7.2
Good
11,037 reviews
Alaska Airlines
8.0
Very good
11,363 reviews

Food

7.1

Crew

8.5

Overall

8.0

Boarding

8.1

Entertainment

7.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

LAX - LIH

The staff were exceptional! They all were kind, accommodating, and professional.

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?

    For a flight from Portland to Key Largo, you will be flying from Portland. Portland (PDX) is just 6.0 mi from the center of the city. Portland is the only Portland airport and it handles 2 outbound flights to Key Largo per day. 8 airlines have flights to Key Largo from Portland on a regular basis.

  • How popular is this Portland to Key Largo flight route?

    Flights from Portland to Key Largo have been viewed 7 times in the past calendar month.

  • How long is the flight from Portland to Key Largo?

    There are many flights that can get you from Portland to Key Largo in 10h. Fly via Delta to get the fastest option. Portland and Key Largo are separated by a distance of 2695 mi.

  • What are the cheapest flights from Portland to Key Largo?

    The cheapest flight price from Portland to Key Largo is $138. On average you can expect to pay $727. The most popular route, (Portland - Miami), can usually be booked for $208.

  • 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 to Key Largo?

    Currently, June is the cheapest month in which you can book a flight from Portland to Key Largo (average of $108). Flying from Portland to Key Largo in March is currently the most expensive (average of $211). 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 8 airlines flying from Portland to Key Largo

Discover the top 8 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 November 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$127Average$338FlexibilityNo cancel feeOn-time65%
Hawaiian AirlinesCheapest$139Average$432FlexibilityNo cancel feeOn-time85%
FrontierCheapest$140Average$203FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$174Average$404FlexibilityNo cancel feeOn-time63%
DeltaCheapest$196Average$410FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$216Average$493FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$229Average$451FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$236Average$433FlexibilityNo cancel feeOn-time75%

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