What is the cheapest airline that flies from Portland to Florida Keys?

Delta is the most popular carrier operating from Portland to Florida Keys

When did momondo last update prices for flights from Portland Airport to Florida Keys?

Prices for flights from Portland Airport to Florida Keys are updated daily.

How many operators does momondo search for flights from Portland Airport to Florida Keys?

The number of operators available for flights from Portland Airport to Florida Keys is 8 as of July 2026.

How old do you have to be to fly from Portland Airport to Florida Keys?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to Florida Keys.

What documentation or ID do you need to fly to Florida Keys?

The travel and health documents you'll need for your trip to Florida Keys may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Florida Keys. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$114 Cheap Flights from Portland to Florida Keys in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Portland to Florida Keys

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

10:45 pm - 7:21 am

PDX

MIA

5h 36mnonstop

5:18 am - 11:10 am

MIA

PDX

8h 52m

1 stop

$217American Airlines

Wed, Nov 11 - Tue, Nov 17

7:14 pm - 6:08 am

PDX

MIA

7h 54m

1 stop

6:05 pm - 11:52 pm

MIA

PDX

8h 47m

1 stop

$227Delta

Fri, Nov 13 - Tue, Nov 17

6:20 am - 4:45 pm

PDX

MIA

7h 25m

1 stop

9:15 am - 6:05 pm

MIA

PDX

11h 50m

2 stops

$232Southwest

Wed, Nov 11 - Tue, Nov 17

12:20 pm - 5:51 am

PDX

MIA

14h 31m

1 stop

10:15 pm - 4:54 pm

MIA

PDX

21h 39m

1 stop

$235Frontier

Thu, Jul 30 - Thu, Aug 6

6:20 am - 9:50 pm

PDX

MIA

12h 30m

2 stops

12:00 pm - 9:20 pm

MIA

PDX

12h 20m

2 stops

$237Southwest

Wed, Nov 11 - Tue, Nov 17

5:16 pm - 5:51 am

PDX

MIA

9h 35m

1 stop

6:00 am - 4:51 pm

MIA

PDX

13h 51m

1 stop

$244Frontier

Tue, Jul 28 - Mon, Aug 10

10:45 pm - 7:21 am

PDX

MIA

5h 36mnonstop

8:16 pm - 11:52 pm

MIA

PDX

6h 36mnonstop

$248American Airlines

Tue, Dec 1 - Tue, Dec 8

6:45 am - 6:40 pm

PDX

MIA

8h 55m

1 stop

6:25 pm - 11:56 pm

MIA

PDX

8h 31m

1 stop

$253Delta

Thu, Aug 13 - Mon, Aug 17

7:18 am - 4:00 pm

PDX

MIA

5h 42mnonstop

5:00 pm - 8:50 pm

MIA

PDX

6h 50mnonstop

$257Alaska Airlines

Wed, Dec 9 - Tue, Dec 15

11:00 pm - 1:59 pm

PDX

EYW

11h 59m

1 stop

2:55 pm - 10:21 am

EYW

PDX

22h 26m

1 stop

$653United Airlines

Tue, Oct 27 - Sat, Oct 31

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United Airlines flights from Portland to Florida Keys

Our best United Airlines deals on Portland to Florida Keys flight tickets

United Airlines

Aug 20

PDX5:00 amPortland

7h 56m

1 stop

MIA3:56 pmMiami

Aug 26

MIA3:57 pmMiami

9h 55m

1 stop

PDX10:52 pmPortland

$293

United Airlines

Jul 20

PDX10:40 pmPortland

9h 44m

1 stop

MIA11:24 amMiami

Jul 28

MIA4:10 pmMiami

9h 20m

1 stop

PDX10:30 pmPortland

$307

United Airlines

Jul 25

PDX11:29 pmPortland

9h 06m

1 stop

MIA11:35 amMiami

Aug 6

MIA6:35 pmMiami

9h 15m

1 stop

PDX12:50 amPortland

$319

American Airlines flights from Portland to Florida Keys

Our best American Airlines deals on Portland to Florida Keys flight tickets

American Airlines

Nov 11

PDX10:45 pmPortland

5h 36m

MIA7:21 amMiami

Nov 17

MIA5:18 amMiami

8h 52m

1 stop

PDX11:10 amPortland

$217

American Airlines

Dec 1

PDX10:45 pmPortland

5h 36m

MIA7:21 amMiami

Dec 8

MIA8:16 pmMiami

6h 36m

PDX11:52 pmPortland

$248

American Airlines

Jul 21

PDX5:28 pmPortland

8h 54m

1 stop

MIA5:22 amMiami

Jul 28

MIA7:07 amMiami

10h 52m

1 stop

PDX2:59 pmPortland

$272

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandMiami

PDX - MIA

PDXMIA

Portland

Wed 11/11

10:45 pm-7:21 am

Nonstop5h 36m

Miami

Tue 11/17

5:18 am-11:10 am

1 stop8h 52m

$217

PortlandMiami

PDX - MIA

PDXMIA

Portland

Fri 11/13

7:14 pm-6:08 am

1 stop7h 54m

Miami

Tue 11/17

6:05 pm-11:52 pm

1 stop8h 47m

$227

PortlandMiami

PDX - MIA

PDXMIA

Portland

Wed 11/11

6:20 am-4:45 pm

1 stop7h 25m

Miami

Tue 11/17

9:15 am-6:05 pm

2 stops11h 50m

$232

PortlandMiami

PDX - MIA

PDXMIA

Portland

Thu 7/30

12:20 pm-5:51 am

1 stop14h 31m

Miami

Thu 8/6

10:15 pm-4:54 pm

1 stop21h 39m

$235

PortlandMiami

PDX - MIA

PDXMIA

Portland

Wed 11/11

6:20 am-9:50 pm

2 stops12h 30m

Miami

Tue 11/17

12:00 pm-9:20 pm

2 stops12h 20m

$237

PortlandMiami

PDX - MIA

PDXMIA

Portland

Tue 7/28

5:16 pm-5:51 am

1 stop9h 35m

Miami

Mon 8/10

6:00 am-4:51 pm

1 stop13h 51m

$244

Quickest round-trip

PortlandMiami

PDX - MIA

PDXMIA

Portland

Tue 12/1

10:45 pm-7:21 am

Nonstop5h 36m

Miami

Tue 12/8

8:16 pm-11:52 pm

Nonstop6h 36m

$248

PortlandMiami

PDX - MIA

PDXMIA

Portland

Thu 8/13

6:45 am-6:40 pm

1 stop8h 55m

Miami

Mon 8/17

6:25 pm-11:56 pm

1 stop8h 31m

$253

PortlandMiami

PDX - MIA

PDXMIA

Portland

Wed 12/9

7:18 am-4:00 pm

Nonstop5h 42m

Miami

Tue 12/15

5:00 pm-8:50 pm

Nonstop6h 50m

$257

PortlandKey West

PDX - EYW

PDXEYW

Portland

Tue 10/27

11:00 pm-1:59 pm

1 stop11h 59m

Key West

Sat 10/31

2:55 pm-10:21 am

1 stop22h 26m

$653

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Portland to Florida Keys

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Florida Keys?

The month of June is another great option to travel to Florida Keys, with average flight prices from Portland averaging around $104.

What is the cheapest day to depart on your flight to Florida Keys?

The cheapest day to depart from Portland to Florida Keys is on a Wednesday when prices can be found for as low as $539. The most expensive day to fly to Florida Keys is Friday, with ticket prices averaging around $689.

What is the cheapest time of day to depart on your flight to Florida Keys?

According to our data, the cheapest time of day to fly to Florida Keys is in the morning. momondo users have found flights departing from Portland to Florida Keys in the morning for as low as $470. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the evening are often more expensive with an average ticket price of $645.

How far in advance should I book a flight from Portland to Florida Keys?

You are more likely to see cheaper flights to Florida Keys from Portland when booking weeks ahead of your departure date. In general, you can expect to find flights to Florida Keys for around $371 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Florida Keys from Portland for as low as $296 on momondo.

Can stopping save me money on Portland to Florida Keys flights?

No. A direct flight is the cheapest option for a flight between Portland to Florida Keys.

Cheap Portland to Florida Keys flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to Florida Keys

Fastest flight time	5h 33m
Direct flights	Every day
Airports in Florida Keys	3 airports

The fastest flight from Portland to Florida Keys takes 5h 33m

Direct flights go from Portland to Florida Keys every day.

There are 3 airports in Florida Keys. From Portland there are direct flights to Miami (MIA).

Search flight deals

Frequently asked questions about flying from Portland to Florida Keys

When did momondo last update prices for flights from Portland Airport to Florida Keys?
Prices for flights from Portland Airport to Florida Keys are updated daily.
How many operators does momondo search for flights from Portland Airport to Florida Keys?
The number of operators available for flights from Portland Airport to Florida Keys is 8 as of July 2026.
How old do you have to be to fly from Portland Airport to Florida Keys?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to Florida Keys.
What documentation or ID do you need to fly to Florida Keys?
The travel and health documents you'll need for your trip to Florida Keys may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Florida Keys. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Portland to Florida Keys?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Portland to Florida Keys is Boeing 737-800 Passenger/BBJ2 (winglets) (20.08% of total bookings). The next most popular plane models are Boeing 737 MAX 8 (12.07%), Boeing 737-800 (8.80%), and Airbus A321neo (8.37%).

Best airlines flying from Portland to Florida Keys

Compare and see reviews for airlines that fly from Portland to Florida Keys with momondo

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $353	Free Cancellation	Rating 7.1 11,770 reviews		Search American Airlines flights
Delta	PriceFrom $388	Free Cancellation	Rating 7.8 8,452 reviews		Search Delta flights

Why use momondo?

Why should I use momondo to find a flight deal from Portland to Florida Keys?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Florida Keys from Portland.

Can I find flights from Portland to Florida Keys with flexible booking policies on momondo?

All flight searches from Portland to Florida Keys on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Portland to Florida Keys?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Florida Keys from Portland.

I’m not ready to book a flight from Portland to Florida Keys right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Portland to Florida Keys flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.