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Key Largo

$61+ Cheap flights from Seattle (SEA) 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 2/3. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — MIA
Nov 10 — Nov 171
Sun 11/10
Sun 11/17
1 adult, Economy
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The best prices from Seattle/Tacoma Intl to Key Largo are usually found in January or September, booked 34 days in advance, depart on a Tuesday or Wednesday and return on a Thursday

Cheap flight deals from Seattle to Key Largo

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Key Largo (KE9). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 5, 2024.

Popular in

June

Cheapest in

January

Round-trip from

$125
(Mytrip)

One-way from

$61
(Mytrip)
High demand for flights, 15% potential price rise
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Best time to find cheap flights, 21% potential price drop
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From Seattle/Tacoma Intl to Key Largo
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One-way flight from Seattle/Tacoma Intl to Key Largo
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Find flight deals from Seattle to Key Largo

Cheapest flights from Seattle to Key Largo
Explore the most affordable flight options available from Seattle to Key Largo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 5, 2024.

This Kiwi.com deal was found by Cheapflights users on 11/5. 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.
Fri 12/62:34 pmSEA - MIA
1 stop8h 18mFrontier
Wed 12/118:00 amMIA - SEA
1 stop30h 29mFrontier
Deal found 11/5$195
This FareScan deal was found by Cheapflights users on 11/4. 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 FareScan is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/39:35 pmSEA - MIA
1 stop30h 22mSpirit Airlines
Tue 12/109:28 pmMIA - SEA
1 stop20h 25mSpirit Airlines
Deal found 11/4$197
This FlightHub deal was found by Cheapflights users on 11/5. 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.
Wed 12/45:15 amSEA - MIA
2 stops22h 42mMultiple Airlines
Wed 12/118:00 amMIA - SEA
1 stop30h 29mMultiple Airlines
Deal found 11/5$201
This Alaska Airlines deal was found by Cheapflights users on 11/4. 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.
Sun 11/2410:41 pmSEA - MIA
Nonstop5h 46mAlaska Airlines
Wed 11/275:22 pmMIA - SEA
Nonstop6h 51mAlaska Airlines
Deal found 11/4$282
This American Airlines deal was found by Cheapflights users on 11/5. 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.
Wed 12/410:25 pmSEA - MIA
Nonstop5h 40mAmerican Airlines
Mon 12/97:36 pmMIA - SEA
Nonstop6h 52mAmerican Airlines
Deal found 11/5$302
This Sun Country Air deal was found by Cheapflights users on 11/5. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/146:13 pmSEA - MIA
1 stop13h 41mSun Country Air
Tue 12/2411:59 amMIA - SEA
1 stop25h 36mSun Country Air
Deal found 11/5$325
This Delta deal was found by Cheapflights users on 11/4. 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.
Sun 12/154:15 pmSEA - MIA
1 stop15h 07mDelta
Wed 12/255:29 pmMIA - SEA
Nonstop7h 04mDelta
Deal found 11/4$348

Find flights from Seattle to Key Largo within your budget

Customize your flight search to find flights from Seattle 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 2,554,862 searches. Data last updated November 5, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SeattleMiami

SEA - MIA

SEAMIA

Seattle/Tacoma Intl

Sun 11/17

9:53 pm-8:43 pm

1 stop19h 50m

$100

SeattleMiami

SEA - MIA

SEAMIA

Seattle/Tacoma Intl

Wed 12/4

5:15 am-6:57 am

2 stops22h 42m

$107

SeattleMiami

SEA - MIA

SEAMIA

Seattle/Tacoma Intl

Tue 2/11

10:17 pm-7:00 am

Nonstop5h 43m

$129

SeattleMiami

SEA - MIA

SEAMIA

Seattle/Tacoma Intl

Tue 1/7

7:15 am-4:05 pm

Nonstop5h 50m

$134

SeattleMiami

SEA - MIA

SEAMIA

Seattle/Tacoma Intl

Sun 12/15

6:26 pm-11:06 am

1 stop13h 40m

$135

SeattleMiami

SEA - MIA

SEAMIA

Seattle/Tacoma Intl

Tue 1/7

7:42 am-6:15 pm

1 stop7h 33m

$143

SeattleMiami

SEA - MIA

SEAMIA

Seattle/Tacoma Intl

Tue 1/28

6:15 am-8:22 pm

2 stops11h 07m

$148

SeattleMiami

SEA - MIA

SEAMIA

Seattle/Tacoma Intl

Sat 2/1

6:30 am-8:10 pm

2 stops10h 40m

$183

SeattleMiami

SEA - MIA

SEAMIA

Seattle/Tacoma Intl

Fri 5/2

10:39 pm-1:05 pm

1 stop11h 26m

$205

SeattleMiami

SEA - MIA

SEAMIA

Seattle/Tacoma Intl

Wed 1/1

6:20 pm-9:25 pm

2 stops24h 05m

$250

Flights are sorted by cheapest first

Deals found on 11/5

Showing 1-10 of 18 results
1
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Best time to book a flight from Seattle to Key Largo

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

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

How far ahead should I book a flight from Seattle to Key Largo?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Key Largo. Price data was last updated on November 1, 2024.

The price you pay for your flight from Seattle to Key Largo may vary depending on when you book. For the best chance of a lower fare, look to book 34 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, September is the cheapest month in which you can book a flight from Seattle to Key Largo (average of $218). Flying from Seattle to Key Largo in March is currently the most expensive (average of $287). 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 SEA to KE9?

Find hourly flight availability from Seattle 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 5, 2024.

When flying from Seattle to Key Largo, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

Use this chart to determine the cheapest time to fly round-trip from Seattle to Key Largo. Price data was last updated on November 3, 2024.

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

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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 November 5, 2024.
Read reviews from past customers who have flown Frontier, Spirit Airlines and Delta from Seattle to Key Largo. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
5,082 reviews

Comfort

8.1

Boarding

8.3

Entertainment

7.7

Crew

8.7

Food

7.2

Overall

8.1

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Southwest
8.1
Very good
5,082 reviews
Southwest
8.1
Very good
5,082 reviews

Comfort

8.1

Boarding

8.3

Entertainment

7.7

Crew

8.7

Food

7.2

Overall

8.1

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Alaska Airlines
8.0
Very good
9,421 reviews
Southwest
8.1
Very good
5,082 reviews

Comfort

8.1

Boarding

8.3

Entertainment

7.7

Crew

8.7

Food

7.2

Overall

8.1

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Delta
8.0
Very good
8,830 reviews
Southwest
8.1
Very good
5,082 reviews

Comfort

8.1

Boarding

8.3

Entertainment

7.7

Crew

8.7

Food

7.2

Overall

8.1

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

JetBlue
7.5
Good
3,486 reviews
Southwest
8.1
Very good
5,082 reviews

Comfort

8.1

Boarding

8.3

Entertainment

7.7

Crew

8.7

Food

7.2

Overall

8.1

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

United Airlines
7.4
Good
9,215 reviews
Southwest
8.1
Very good
5,082 reviews

Comfort

8.1

Boarding

8.3

Entertainment

7.7

Crew

8.7

Food

7.2

Overall

8.1

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Related info for your journey

Find useful and relevant information for your journey from Seattle 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 Seattle to Key Largo?

    Seattle/Tacoma Intl (SEA) is the airport you will fly out of if you book a flight from Seattle to Key Largo. You should not have trouble finding flights to Key Largo from Seattle/Tacoma Intl; the airport handles an average of 2 outbound flights to Key Largo per day. You should also have plenty of airline options to choose from since 8 airlines have flights from the Seattle airport to Key Largo. It is only a 11.4 mi journey to Seattle/Tacoma Intl (SEA) from Seattle’s city center.

  • Can I find flights from Seattle to Key Largo for under $200 on Cheapflights?

    Yes, there are multiple flights from Seattle to Key Largo for under $200. The cheapest flight booked recently is on Frontier for just $125, but on average you can expect to pay $238.

  • Are there nonstop flights from Seattle to Key Largo for under $300 on Cheapflights?

    Cheapflights has at least 3 direct flights from Seattle to Key Largo under $300. A good price for a nonstop flight from Seattle to Key Largo is less than $270.

  • Are there last-minute flights available from Seattle to Key Largo for under $300?

    There are currently 8+ open flights from Seattle to Key Largo within the next 7 days for less than $300.

  • What days are nonstop flights available from Seattle to Key Largo?

    Nonstop flights are available for this route on the following days: Tuesday, Wednesday, Thursday, Saturday.

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

    The Seattle/Tacoma Intl to Key Largo flight path was viewed by 33 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How many flights depart from Seattle to Key Largo on average per day?

    Per day, 4 flights depart from Seattle to Key Largo on average.
    Morning (6am - Noon) - 100% of flight departures

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

    Departing from Seattle to Key Largo will take you 5h 50m. There are 2736 mi between Seattle and Key Largo. This flight may include one or multiple stops.

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

    $61 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Spirit Airlines and American Airlines, with prices starting from $69 and $129, respectively.

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

    Before booking your flight to Key Largo from Seattle, check out the most reliable airlines to get you to your destination on time: GOL (94%), American Airlines (93%), Hawaiian Airlines( 86%).

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

    The cheapest flight price from Seattle to Key Largo is $138. On average you can expect to pay $906. The most popular route, (Seattle/Tacoma Intl - Miami), can usually be booked for $148.

  • What does SEA to MIA mean?

    This is defined as Seattle/Tacoma Intl Airport (SEA) and Miami Airport (MIA). Codes like Miami Airport are often used to just call airports uniquely. Fort Lauderdale Airport (FLL), Key West Airport (EYW), Miami Opa Locka Airport (OPF), Fort Lauderdale Executive Airport (FXE), Boca Raton Airport (BCT) are some additional IATA codes for airports related to your trip.

  • Can I find deals for flights from Seattle to Key Largo that include extra baggage allowance?

    The amount of baggage you can bring on your Seattle to Key Largo flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Seattle to Key Largo with specific airlines?

    Yes, Cheapflights allows you to browse and filter Seattle to Key Largo flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Seattle to Key Largo that include hotel bookings?

    Yes. In addition to deals on Seattle to Key Largo flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Key Largo?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Key Largo.

  • Can I find deals for business class flights from Seattle to Key Largo?

    Yes. Cheapflights offers flight deals from Seattle 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.

  • Can I find deals for flights from Seattle to Key Largo that allow pets onboard?

    Many airlines flying from Seattle to Key Largo offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Seattle to Key Largo?

    Yes, you can often find last-minute deals on Seattle to Key Largo flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Seattle to Key Largo flight deals updated?

    The Seattle to Key Largo flight deals you see on this page were last updated on 11/5.

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

    Currently, September is the cheapest month in which you can book a flight from Seattle to Key Largo (average of $218). Flying from Seattle to Key Largo in March is currently the most expensive (average of $287). 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.

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Top 8 airlines flying from Seattle to Key Largo

Discover the top 8 airlines that operate flights from Seattle 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 2,554,862 searches. Data last updated November 5, 2024.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$121Average$323FlexibilityNo cancel feeOn-time62%
Sun Country AirCheapest$122Average$347FlexibilityNo cancel feeOn-time83%
Spirit AirlinesCheapest$127Average$285FlexibilityNo cancel feeOn-time65%
FrontierCheapest$128Average$263FlexibilityNo cancel feeOn-time62%
Alaska AirlinesCheapest$180Average$429FlexibilityNo cancel feeOn-time75%
DeltaCheapest$232Average$578FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$256Average$547FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$273Average$540FlexibilityNo cancel feeOn-time71%
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