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$320+ Cheap flights from Key Largo, FL to Vietnam

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.
MIA — SGN
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Find flight deals from Key Largo to Vietnam

Cheapest flights from Key Largo to Vietnam
Explore the most affordable flight options available from Key Largo to Vietnam. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

This United Airlines deal was found by Cheapflights users on 10/28. 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.
Thu 11/67:00 amMIA - SGN
2 stops50h 50mUnited Airlines
Wed 11/196:00 amSGN - MIA
3 stops41h 49mUnited Airlines
Deal found 10/28$836
This United Airlines deal was found by Cheapflights users on 10/28. 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.
Thu 11/276:20 amMIA - SGN
3 stops52h 35mUnited Airlines
Thu 12/46:00 amSGN - MIA
3 stops27h 43mUnited Airlines
Deal found 10/28$877
This United Airlines deal was found by Cheapflights users on 10/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/29:00 amMIA - SGN
3 stops49h 55mUnited Airlines
Sun 12/711:05 pmSGN - MIA
2 stops35h 37mUnited Airlines
Deal found 10/29$884
This United Airlines deal was found by Cheapflights users on 10/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/39:00 amMIA - SGN
3 stops49h 55mUnited Airlines
Tue 11/116:00 amSGN - MIA
3 stops29h 59mUnited Airlines
Deal found 10/29$895
This United Airlines deal was found by Cheapflights users on 10/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/129:00 amMIA - SGN
3 stops49h 55mUnited Airlines
Sun 11/166:00 amSGN - MIA
3 stops25h 52mUnited Airlines
Deal found 10/29$923
This United Airlines deal was found by Cheapflights users on 10/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/134:50 pmMIA - SGN
3 stops42h 05mUnited Airlines
Thu 12/46:00 amSGN - MIA
2 stops27h 50mUnited Airlines
Deal found 10/29$932
This FlightHub deal was found by Cheapflights users on 10/30. 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.
Mon 11/37:36 amMIA - HAN
2 stops44h 54mChina Airlines
Tue 11/1111:35 amHAN - MIA
2 stops41h 58mChina Airlines
Deal found 10/30$981
This Korean Air deal was found by Cheapflights users on 10/29. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/267:15 amMIA - HAN
2 stops26h 30mKorean Air
Wed 12/311:05 pmHAN - MIA
2 stops29h 10mKorean Air
Deal found 10/29$1,036
This Korean Air deal was found by Cheapflights users on 10/29. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/287:00 amMIA - HAN
2 stops26h 45mKorean Air
Fri 12/511:05 pmHAN - MIA
2 stops29h 10mKorean Air
Deal found 10/29$1,074
This American Airlines deal was found by Cheapflights users on 10/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/27:20 amMIA - HAN
2 stops27h 10mAmerican Airlines
Wed 12/1011:55 pmHAN - MIA
2 stops33h 01mAmerican Airlines
Deal found 10/28$1,141
This FlightHub deal was found by Cheapflights users on 10/30. 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 11/197:40 amMIA - HAN
2 stops38h 55mChina Airlines
Sun 11/2311:35 amHAN - MIA
2 stops30h 16mChina Airlines
Deal found 10/30$1,158
This China Airlines deal was found by Cheapflights users on 10/27. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/57:36 amMIA - HAN
2 stops44h 54mChina Airlines
Sun 11/911:35 amHAN - MIA
2 stops41h 58mChina Airlines
Deal found 10/27$1,212

Cheap flight deals from Key Largo to Vietnam

Keep the following information in mind while searching for Key Largo to Vietnam flight deals. Data was last updated October 30, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$877
(United Airlines)

One-way from

$413
(Kiwi.com)

Popular in

December

Cheapest in

October

Average price

$1,040
Provider with most accurate pricing for Miami-Ho Chi Minh City flight deals.
Search Deals
Provider most trusted by Cheapflights users for Miami-Ho Chi Minh City flights.
Search Deals
From Key Largo to Vietnam
Search Deals
One-way flight from Key Largo to Vietnam
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($47 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($38 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Key Largo to Vietnam 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 October 30, 2025.
Use the filters below to find and compare flights from Key Largo to Vietnam that are best for you.

Fly from

Key Largo

Fly to

Vietnam

Route

Depart

Return

Price

MiamiHo Chi Minh City

MIA - SGN

MIASGN

Miami

Sun 4/12

7:30 pm-11:15 pm

2 stops40h 45m

Ho Chi Minh City

Mon 5/11

11:45 pm-2:33 pm

2 stops25h 48m

$887

MiamiHo Chi Minh City

MIA - SGN

MIASGN

Miami

Mon 2/16

10:58 am-10:55 pm

3 stops47h 57m

Ho Chi Minh City

Wed 2/25

6:00 am-7:27 am

2 stops37h 27m

$904

MiamiHo Chi Minh City

MIA - SGN

MIASGN

Miami

Tue 2/3

6:15 pm-10:55 pm

2 stops40h 40m

Ho Chi Minh City

Tue 2/10

6:00 am-11:30 pm

3 stops29h 30m

$904

MiamiHo Chi Minh City

MIA - SGN

MIASGN

Miami

Wed 2/4

6:05 am-10:55 pm

2 stops28h 50m

Ho Chi Minh City

Wed 2/11

6:00 am-5:06 pm

2 stops23h 06m

$908

MiamiHanoi

MIA - HAN

MIAHAN

Miami

Wed 1/28

6:05 am-11:05 pm

2 stops29h 00m

Hanoi Noibai

Sat 2/14

12:25 am-9:59 pm

2 stops33h 34m

$910

MiamiHanoi

MIA - HAN

MIAHAN

Miami

Mon 1/26

6:20 am-11:05 pm

2 stops28h 45m

Hanoi Noibai

Sat 2/14

12:25 am-10:55 am

2 stops46h 30m

$910

MiamiHo Chi Minh City

MIA - SGN

MIASGN

Miami

Tue 2/3

6:05 am-10:55 pm

2 stops52h 50m

Ho Chi Minh City

Sat 2/21

6:00 am-1:48 pm

3 stops43h 48m

$918

MiamiHo Chi Minh City

MIA - SGN

MIASGN

Miami

Wed 11/12

9:00 am-10:55 pm

3 stops49h 55m

Ho Chi Minh City

Sun 11/16

6:00 am-7:52 pm

3 stops25h 52m

$923

MiamiHo Chi Minh City

MIA - SGN

MIASGN

Miami

Thu 11/13

12:23 pm-10:55 pm

3 stops46h 32m

Ho Chi Minh City

Thu 12/4

6:00 am-9:43 pm

3 stops27h 43m

$923

MiamiHo Chi Minh City

MIA - SGN

MIASGN

Miami

Wed 2/4

6:05 am-10:55 pm

2 stops28h 50m

Ho Chi Minh City

Sat 2/14

6:00 am-7:27 am

2 stops37h 27m

$936

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Showing 1-10 of 55 results
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Best time to book a flight from Key Largo to Vietnam

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

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

Currently, July is the cheapest month in which you can book a flight from Key Largo to Vietnam (average of $631). Flying from Key Largo to Vietnam in June is currently the most expensive (average of $1,271). 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 KE9 to VN?

Find hourly flight availability from Key Largo to Vietnam. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 30, 2025.

When flying from Key Largo to Vietnam, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 17% versus a flight in the afternoon.

Reviews of airlines servicing Vietnam

Get insights into the airlines that provide service to Vietnam. 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 Vietnam. Reviews last updated October 30, 2025.
Read reviews from past customers who have flown China Airlines, Qatar Airways, and United Airlines from Key Largo to Vietnam. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
China Airlines
8.3
Very good
776 reviews

Comfort

8.0

Food

7.8

Entertainment

8.0

Overall

8.3

Boarding

8.3

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

SFO - TPE

Bad News - The flight was delayed and it was due to ground crew issues but the staff were moving things along. The seat size was cramp and i am a lean person. The attendant kept asking me in Chinese when i already stated i don’t speak the language. The food was bad. The taste, aroma, consistent of mush. Even a cafeteria lady can cook better food. Kudos - the pilot made up for lost time to the best of his ability. He made sure that the flight was smooth even though there was occasional turbulence. The landing was great.
China Airlines
8.3
Very good
776 reviews
China Airlines
8.3
Very good
776 reviews

Comfort

8.0

Food

7.8

Entertainment

8.0

Overall

8.3

Boarding

8.3

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

SFO - TPE

Bad News - The flight was delayed and it was due to ground crew issues but the staff were moving things along. The seat size was cramp and i am a lean person. The attendant kept asking me in Chinese when i already stated i don’t speak the language. The food was bad. The taste, aroma, consistent of mush. Even a cafeteria lady can cook better food. Kudos - the pilot made up for lost time to the best of his ability. He made sure that the flight was smooth even though there was occasional turbulence. The landing was great.
Qatar Airways
7.4
Good
3,659 reviews
China Airlines
8.3
Very good
776 reviews

Comfort

8.0

Food

7.8

Entertainment

8.0

Overall

8.3

Boarding

8.3

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

SFO - TPE

Bad News - The flight was delayed and it was due to ground crew issues but the staff were moving things along. The seat size was cramp and i am a lean person. The attendant kept asking me in Chinese when i already stated i don’t speak the language. The food was bad. The taste, aroma, consistent of mush. Even a cafeteria lady can cook better food. Kudos - the pilot made up for lost time to the best of his ability. He made sure that the flight was smooth even though there was occasional turbulence. The landing was great.
United Airlines
7.4
Good
8,998 reviews
China Airlines
8.3
Very good
776 reviews

Comfort

8.0

Food

7.8

Entertainment

8.0

Overall

8.3

Boarding

8.3

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

SFO - TPE

Bad News - The flight was delayed and it was due to ground crew issues but the staff were moving things along. The seat size was cramp and i am a lean person. The attendant kept asking me in Chinese when i already stated i don’t speak the language. The food was bad. The taste, aroma, consistent of mush. Even a cafeteria lady can cook better food. Kudos - the pilot made up for lost time to the best of his ability. He made sure that the flight was smooth even though there was occasional turbulence. The landing was great.
Turkish Airlines
7.3
Good
4,031 reviews
China Airlines
8.3
Very good
776 reviews

Comfort

8.0

Food

7.8

Entertainment

8.0

Overall

8.3

Boarding

8.3

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

SFO - TPE

Bad News - The flight was delayed and it was due to ground crew issues but the staff were moving things along. The seat size was cramp and i am a lean person. The attendant kept asking me in Chinese when i already stated i don’t speak the language. The food was bad. The taste, aroma, consistent of mush. Even a cafeteria lady can cook better food. Kudos - the pilot made up for lost time to the best of his ability. He made sure that the flight was smooth even though there was occasional turbulence. The landing was great.
American Airlines
7.2
Good
11,030 reviews
China Airlines
8.3
Very good
776 reviews

Comfort

8.0

Food

7.8

Entertainment

8.0

Overall

8.3

Boarding

8.3

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

SFO - TPE

Bad News - The flight was delayed and it was due to ground crew issues but the staff were moving things along. The seat size was cramp and i am a lean person. The attendant kept asking me in Chinese when i already stated i don’t speak the language. The food was bad. The taste, aroma, consistent of mush. Even a cafeteria lady can cook better food. Kudos - the pilot made up for lost time to the best of his ability. He made sure that the flight was smooth even though there was occasional turbulence. The landing was great.

Related info for your journey

Find useful and relevant information for your journey from Key Largo to Vietnam. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    There are many flights that can get you from Key Largo to Vietnam in 38h 20m. Fly via Korean Air, United Airlines, or China Airlines to get the fastest option. Key Largo and Vietnam are separated by a distance of 9156 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    $511 is the cheapest one-way deal found within the past few days, from Japan Airlines. You may also be able to find cheap deals on Delta and Cathay Pacific, with prices starting from $568 and $569, respectively.

  • What are the most popular routes from Key Largo to Vietnam?

    The most popular route from Key Largo to Vietnam is Miami - Ho Chi Minh City. You may also consider Miami - Hanoi Noibai or Miami - Da Nang.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Key Largo to Vietnam 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 Key Largo to Vietnam?

    Currently, July is the cheapest month in which you can book a flight from Key Largo to Vietnam (average of $631). Flying from Key Largo to Vietnam in June is currently the most expensive (average of $1,271). 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 10 airlines flying from Key Largo to Vietnam

Discover the top 10 airlines that operate flights from Key Largo to Vietnam. 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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Japan AirlinesCheapest$693Average$1,378FlexibilityNo cancel feeOn-time79%
American AirlinesCheapest$742Average$1,368FlexibilityNo cancel feeOn-time71%
JetBlueCheapest$750Average$1,376FlexibilityNo cancel feeOn-time62%
ANACheapest$837Average$1,147FlexibilityNo cancel feeOn-time80%
United AirlinesCheapest$858Average$1,126FlexibilityNo cancel feeOn-time69%
EVA AirCheapest$887Average$1,190FlexibilityNo cancel feeOn-time74%
China AirlinesCheapest$968Average$1,360FlexibilityNo cancel feeOn-time70%
Qatar AirwaysCheapest$978Average$1,551FlexibilityNo cancel feeOn-time68%
Korean AirCheapest$1,002Average$1,494FlexibilityNo cancel feeOn-time81%
Air CanadaCheapest$1,079Average$1,422FlexibilityNo cancel feeOn-time67%

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