Cheap flights from Portland to Florida Keys from $103

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to Florida Keys departing on 9/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Cheap round-trip flights

Frontier Logo
3:26 pm - 6:19 amPDX-MIA
11h 53m1 stop
Frontier Logo
6:00 am - 11:56 amMIA-PDX
8h 56m1 stop
$207Frontier
Find Deal
dom., nov. 2 - vie., nov. 7
Frontier Logo
7:15 am - 12:44 amPDX-MIA
14h 29m1 stop
Frontier Logo
6:00 am - 11:56 amMIA-PDX
8h 56m1 stop
$214Frontier
Find Deal
mié., sep. 10 - sáb., nov. 1
Frontier Logo
7:15 am - 12:44 amPDX-MIA
14h 29m1 stop
Frontier Logo
6:00 am - 11:56 amMIA-PDX
8h 56m1 stop
$215Frontier
Find Deal
mié., sep. 10 - jue., oct. 30
Delta Logo
7:05 pm - 6:25 amPDX-MIA
8h 20m1 stop
Delta Logo
7:43 am - 4:02 pmMIA-PDX
11h 19m1 stop
$227Delta
Find Deal
vie., sep. 26 - dom., oct. 5
United Airlines Logo
11:59 pm - 11:55 amPDX-MIA
8h 56m1 stop
United Airlines Logo
7:00 am - 11:49 amMIA-PDX
7h 49m1 stop
$232United Airlines
Find Deal
sáb., feb. 7 - sáb., feb. 14
Alaska Airlines Logo
6:05 am - 5:45 pmPDX-MIA
8h 40m1 stop
Alaska Airlines Logo
6:45 pm - 12:15 amMIA-PDX
8h 30m1 stop
$236Alaska Airlines
Find Deal
mar., sep. 16 - mié., sep. 24
Delta Logo
10:05 pm - 9:23 amPDX-MIA
8h 18m1 stop
Delta Logo
8:11 am - 1:00 pmMIA-PDX
7h 49m1 stop
$237Delta
Find Deal
mar., sep. 9 - vie., oct. 31
United Airlines Logo
10:56 pm - 11:47 amPDX-MIA
9h 51m1 stop
United Airlines Logo
7:00 am - 11:49 amMIA-PDX
7h 49m1 stop
$242United Airlines
Find Deal
vie., feb. 20 - jue., feb. 26
American Airlines Logo
10:45 pm - 7:19 amPDX-MIA
5h 34mnonstop
American Airlines Logo
7:52 pm - 11:31 pmMIA-PDX
6h 39mnonstop
$257American Airlines
Find Deal
mié., nov. 5 - mar., nov. 11
American Airlines Logo
10:55 pm - 11:00 amPDX-EYW
9h 05m1 stop
American Airlines Logo
3:55 pm - 11:29 pmEYW-PDX
10h 34m1 stop
$364American Airlines
Find Deal
jue., ene. 22 - lun., ene. 26

Delta flights from Portland to Florida Keys

Our best Delta deals on Portland to Florida Keys flight tickets
Delta
Sep 26
PDX7:05 pmPortland
8h 20m
1 stop
MIA6:25 amMiami
Oct 5
MIA7:43 amMiami
11h 19m
1 stop
PDX4:02 pmPortland
Delta
Sep 9
PDX10:05 pmPortland
8h 18m
1 stop
MIA9:23 amMiami
Oct 31
MIA8:11 amMiami
7h 49m
1 stop
PDX1:00 pmPortland
Delta
Sep 4
PDX12:12 pmPortland
9h 12m
1 stop
MIA12:24 amMiami
Sep 8
MIA4:25 pmMiami
8h 47m
1 stop
PDX10:12 pmPortland

Alaska Airlines flights from Portland to Florida Keys

Our best Alaska Airlines deals on Portland to Florida Keys flight tickets
Alaska Airlines
Sep 16
PDX6:05 amPortland
8h 40m
1 stop
MIA5:45 pmMiami
Sep 24
MIA6:45 pmMiami
8h 30m
1 stop
PDX12:15 amPortland
Alaska Airlines
Aug 29
PDX4:46 pmPortland
21h 45m
1 stop
MIA5:31 pmMiami
Sep 5
MIA6:45 pmMiami
8h 30m
1 stop
PDX12:15 amPortland
Alaska Airlines
Sep 9
PDX6:05 amPortland
8h 40m
1 stop
MIA5:45 pmMiami
Sep 16
MIA6:45 pmMiami
14h 33m
2 stops
PDX6:18 amPortland

momondo Fare Finder

 
Customize your flight search to find flights from Portland to Florida Keys 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, momondo users made 832,500 searches. Data last updated agosto 28, 2025.
Use the filters below to find and compare flights from Portland to Florida Keys that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandMiami

PDX - MIA

PDXMIA

Portland

dom. 11/2

3:26 pm-6:19 am

1 stop11h 53m

Miami

vie. 11/7

6:00 am-11:56 am

1 stop8h 56m

$207

PortlandMiami

PDX - MIA

PDXMIA

Portland

mié. 9/10

7:15 am-12:44 am

1 stop14h 29m

Miami

sáb. 11/1

6:00 am-11:56 am

1 stop8h 56m

$214

PortlandMiami

PDX - MIA

PDXMIA

Portland

mié. 9/10

7:15 am-12:44 am

1 stop14h 29m

Miami

jue. 10/30

6:00 am-11:56 am

1 stop8h 56m

$215

PortlandMiami

PDX - MIA

PDXMIA

Portland

vie. 9/26

7:05 pm-6:25 am

1 stop8h 20m

Miami

dom. 10/5

7:43 am-4:02 pm

1 stop11h 19m

$227

PortlandMiami

PDX - MIA

PDXMIA

Portland

sáb. 2/7

11:59 pm-11:55 am

1 stop8h 56m

Miami

sáb. 2/14

7:00 am-11:49 am

1 stop7h 49m

$232

PortlandMiami

PDX - MIA

PDXMIA

Portland

mar. 9/16

6:05 am-5:45 pm

1 stop8h 40m

Miami

mié. 9/24

6:45 pm-12:15 am

1 stop8h 30m

$236

PortlandMiami

PDX - MIA

PDXMIA

Portland

mar. 9/9

10:05 pm-9:23 am

1 stop8h 18m

Miami

vie. 10/31

8:11 am-1:00 pm

1 stop7h 49m

$237

PortlandMiami

PDX - MIA

PDXMIA

Portland

vie. 2/20

10:56 pm-11:47 am

1 stop9h 51m

Miami

jue. 2/26

7:00 am-11:49 am

1 stop7h 49m

$242

PortlandMiami

PDX - MIA

PDXMIA

Portland

mié. 11/5

10:45 pm-7:19 am

Nonstop5h 34m

Miami

mar. 11/11

7:52 pm-11:31 pm

Nonstop6h 39m

$257

PortlandKey West

PDX - EYW

PDXEYW

Portland

jue. 1/22

10:55 pm-11:00 am

1 stop9h 05m

Key West

lun. 1/26

3:55 pm-11:29 pm

1 stop10h 34m

$364

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Florida Keys from

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

What is the cheapest month to fly to Florida Keys?

The month of August is another great option to travel to Florida Keys, with average flight prices from Portland averaging around $347.

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 Tuesday when prices can be found for as low as $544. The most expensive day to fly to Florida Keys is Friday, with ticket prices averaging around $695.

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 afternoon. momondo users have found flights departing from Portland to Florida Keys in the afternoon for as low as $247. 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 $662.

How far in advance should I book a flight 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 $403 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 $351 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 34m

Direct flights

Every day

Airports in Florida Keys

1 airport
The fastest flight from Portland to Florida Keys takes 5h 34m
Direct flights go from Portland to Florida Keys every day.
There is 1 airport near Florida Keys: Miami (MIA)
  • 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?

  • 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?

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
DeltaPriceFrom $261Free CancellationRating
7.9
7,977 reviews
Search Delta flights
American AirlinesPriceFrom $268Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $317Free CancellationRating
7.4
8,944 reviews
Search United Airlines 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.

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1 adult
mar. 9/2
mar. 9/9

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