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Key Largo

$123+ 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 5/14. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — MIA
May 5 — May 121
Mon 5/5
Mon 5/12
1 adult, Economy
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Cheapflights Tip: The best prices from Portland to Key Largo are usually found in August or January, booked 23 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

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 April 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$241
(CheapOair)

One-way from

$125
(Delta)

Popular in

December

Cheapest in

August

Average price

$389
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. 3% potential increase in price ($15 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in April 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 April 30, 2025.

This CheapOair deal was found by Cheapflights users on 4/29. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/196:20 amPDX - MIA
1 stop20h 02mFrontier
Thu 5/226:00 amMIA - PDX
1 stop31h 09mFrontier
Deal found 4/29$241
This Mytrip deal was found by Cheapflights users on 4/29. 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.
Wed 5/281:37 pmPDX - MIA
1 stop13h 06mSpirit Airlines
Sun 6/810:10 pmMIA - PDX
2 stops21h 35mSpirit Airlines
Deal found 4/29$244
This Delta deal was found by Cheapflights users on 4/28. 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 5/137:05 pmPDX - MIA
1 stop8h 20mDelta
Fri 5/168:10 amMIA - PDX
1 stop7h 50mDelta
Deal found 4/28$249
This FlightHub deal was found by Cheapflights users on 4/28. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/95:40 pmPDX - MIA
1 stop9h 03mMultiple Airlines
Sat 5/176:00 amMIA - PDX
1 stop21h 38mMultiple Airlines
Deal found 4/28$252
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Wed 5/217:54 amPDX - MIA
2 stops11h 35mUnited Airlines
Sun 5/258:41 amMIA - PDX
1 stop9h 05mUnited Airlines
Deal found 4/28$309
This American Airlines deal was found by Cheapflights users on 4/29. 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 12/611:08 pmPDX - MIA
Nonstop5h 42mAmerican Airlines
Thu 12/185:29 pmMIA - PDX
1 stop8h 25mAmerican Airlines
Deal found 4/29$323
This Alaska Airlines deal was found by Cheapflights users on 4/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/45:30 pmPDX - MIA
1 stop20h 51mAlaska Airlines
Mon 6/96:21 pmMIA - PDX
2 stops14h 59mAlaska Airlines
Deal found 4/28$337
This Hawaiian Airlines deal was found by Cheapflights users on 4/28. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/65:15 amPDX - MIA
1 stop9h 05mHawaiian Airlines
Sun 8/106:20 pmMIA - PDX
1 stop8h 39mHawaiian Airlines
Deal found 4/28$401
This Southwest deal was found by Cheapflights users on 4/28. 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.
Thu 8/285:00 amPDX - MIA
2 stops9h 20mSouthwest
Tue 9/26:55 amMIA - PDX
2 stops12h 10mSouthwest
Deal found 4/28$402

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 April 30, 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 5/19

6:20 am-5:22 am

1 stop20h 02m

Miami

Thu 5/22

6:00 am-10:09 am

1 stop31h 09m

$241

PortlandMiami

PDX - MIA

PDXMIA

Portland

Wed 5/28

1:37 pm-5:43 am

1 stop13h 06m

Miami

Sun 6/8

10:10 pm-4:45 pm

2 stops21h 35m

$244

PortlandMiami

PDX - MIA

PDXMIA

Portland

Tue 5/13

7:05 pm-6:25 am

1 stop8h 20m

Miami

Fri 5/16

8:10 am-1:00 pm

1 stop7h 50m

$249

PortlandMiami

PDX - MIA

PDXMIA

Portland

Fri 5/9

5:40 pm-5:43 am

1 stop9h 03m

Miami

Sat 5/17

6:00 am-12:38 am

1 stop21h 38m

$252

PortlandMiami

PDX - MIA

PDXMIA

Portland

Wed 5/21

7:54 am-10:29 pm

2 stops11h 35m

Miami

Sun 5/25

8:41 am-2:46 pm

1 stop9h 05m

$309

PortlandMiami

PDX - MIA

PDXMIA

Portland

Wed 6/4

5:30 pm-5:21 pm

1 stop20h 51m

Miami

Mon 6/9

6:21 pm-6:20 am

2 stops14h 59m

$337

PortlandMiami

PDX - MIA

PDXMIA

Portland

Thu 5/29

10:24 pm-7:01 am

Nonstop5h 37m

Miami

Sat 5/31

7:44 pm-11:11 pm

Nonstop6h 27m

$338

PortlandMiami

PDX - MIA

PDXMIA

Portland

Sat 7/12

9:15 pm-10:45 am

1 stop10h 30m

Miami

Wed 7/30

2:40 pm-12:15 am

2 stops12h 35m

$413

PortlandMiami

PDX - MIA

PDXMIA

Portland

Wed 5/14

5:40 pm-11:33 am

2 stops14h 53m

$123

PortlandMiami

PDX - MIA

PDXMIA

Portland

Thu 6/5

6:43 pm-5:45 am

1 stop8h 02m

$125

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 17 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.

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 April 25, 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, September is the cheapest month in which you can book a flight from Portland to Key Largo (average of $228). Flying from Portland 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 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 April 30, 2025.

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

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. Friday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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 April 30, 2025.
See what other customers who have flown with Alaska Airlines, Southwest and Delta from Portland to Key Largo have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,961 reviews

Crew

8.5

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
9,961 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Crew

8.5

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,295 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Crew

8.5

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,936 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Crew

8.5

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,406 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Crew

8.5

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,696 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Crew

8.5

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 0 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 12 times in the past calendar month.

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

    For one-way options, check prices for Delta. According to our data, you can fly for as low as $125. Users have also found prices from $127 and $130 on Frontier and United Airlines, respectively.

  • What are the most reliable airlines from Portland to Key Largo?

    No one likes to see their flight delayed. When booking a flight from Portland to Key Largo consider choosing American Airlines (88%), Qatar Airways (83%) or Hawaiian Airlines (80%) as they are the most reliable in getting you off to your destination on time.

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

    The cheapest flight price from Portland to Key Largo is $119. On average you can expect to pay $920. The most popular route, (Portland - Miami), can usually be booked for $195.

  • 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, September is the cheapest month in which you can book a flight from Portland to Key Largo (average of $228). Flying from Portland 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 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 April 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$134Average$257FlexibilityNo cancel feeOn-time65%
FrontierCheapest$138Average$205FlexibilityNo cancel feeOn-time62%
Hawaiian AirlinesCheapest$138Average$378FlexibilityNo cancel feeOn-time85%
DeltaCheapest$197Average$364FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$199Average$459FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$236Average$424FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$242Average$471FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$249Average$395FlexibilityNo cancel feeOn-time69%

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