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$366+ 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 3/6. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — SGN
feb. 28 — mar. 71
sáb. 2/28
sáb. 3/7
1 adult, Economy
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Cheap 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 enero 29, 2026.

This United Airlines deal was found by Cheapflights users on 1/26. 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.
jue. 1/291:05 pm
MIA
-
SGN
3 stops45h 50m
United Airlines
lun. 2/26:00 am
SGN
-
MIA
3 stops27h 54m
United Airlines
Deal found 1/26$719
This United Airlines deal was found by Cheapflights users on 1/26. 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.
dom. 2/158:35 am
MIA
-
SGN
2 stops50h 20m
United Airlines
dom. 3/156:00 am
SGN
-
MIA
3 stops40h 47m
United Airlines
Deal found 1/26$838
This Justfly.com deal was found by Cheapflights users on 1/28. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/48:55 am
MIA
-
SGN
2 stops25h 50m
Japan Airlines
sáb. 9/1211:05 pm
SGN
-
MIA
2 stops35h 07m
Japan Airlines
Deal found 1/28$844
This Delta deal was found by Cheapflights users on 1/26. 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.
vie. 8/1410:20 am
MIA
-
SGN
2 stops49h 55m
Delta
vie. 10/167:35 am
SGN
-
MIA
2 stops26h 10m
Delta
Deal found 1/26$876
This FlightHub deal was found by Cheapflights users on 1/26. 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.
mar. 4/146:15 am
MIA
-
SGN
2 stops28h 40m
ANA
jue. 4/3011:15 pm
SGN
-
MIA
2 stops30h 15m
ANA
Deal found 1/26$879
This United Airlines deal was found by Cheapflights users on 1/26. 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.
mar. 9/14:17 pm
MIA
-
SGN
3 stops42h 38m
United Airlines
mié. 9/3011:15 pm
SGN
-
MIA
2 stops34h 01m
United Airlines
Deal found 1/26$881
This FlightHub deal was found by Cheapflights users on 1/26. 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.
lun. 4/136:15 am
MIA
-
SGN
2 stops31h 00m
ANA
jue. 4/3011:15 pm
SGN
-
MIA
2 stops30h 15m
ANA
Deal found 1/26$882
This Delta deal was found by Cheapflights users on 1/26. 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.
sáb. 4/116:13 pm
MIA
-
SGN
2 stops42h 02m
Delta
lun. 4/277:35 am
SGN
-
MIA
2 stops32h 52m
Delta
Deal found 1/26$883
This United Airlines deal was found by Cheapflights users on 1/26. 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.
jue. 9/36:30 am
MIA
-
SGN
2 stops30h 45m
United Airlines
mar. 9/2911:15 pm
SGN
-
MIA
2 stops34h 01m
United Airlines
Deal found 1/26$884
This United Airlines deal was found by Cheapflights users on 1/28. 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.
lun. 9/76:30 am
MIA
-
HAN
2 stops28h 45m
United Airlines
jue. 9/1011:35 pm
HAN
-
MIA
2 stops33h 41m
United Airlines
Deal found 1/28$892
This oojo deal was found by Cheapflights users on 1/27. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/710:30 pm
MIA
-
HAN
1 stop30h 10m
Turkish Airlines
jue. 9/1010:55 pm
HAN
-
MIA
1 stop43h 15m
Turkish Airlines
Deal found 1/27$935
This oojo deal was found by Cheapflights users on 1/28. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 5/1310:35 am
MIA
-
HAN
1 stop42h 05m
Turkish Airlines
mié. 5/2710:55 pm
HAN
-
MIA
1 stop32h 40m
Turkish Airlines
Deal found 1/28$972

Find 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 enero 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$838
(United Airlines)

One-way from

$366
(United Airlines)

Popular in

December

Cheapest in

January

Average price

$855
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
High demand for flights, 5% potential price rise
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($33 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
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 enero 29, 2026.
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

vie. 4/17

6:42 am-11:15 pm

2 stops29h 33m

Ho Chi Minh City

lun. 4/27

7:35 am-5:27 am

2 stops32h 52m

$876

MiamiHo Chi Minh City

MIA - SGN

MIASGN

Miami

lun. 3/30

4:53 pm-10:05 pm

3 stops42h 12m

Ho Chi Minh City

mar. 5/12

11:15 pm-10:09 pm

2 stops33h 54m

$885

MiamiHo Chi Minh City

MIA - SGN

MIASGN

Miami

mar. 4/7

6:15 am-10:05 pm

3 stops28h 50m

Ho Chi Minh City

jue. 4/30

11:15 pm-6:30 pm

2 stops30h 15m

$885

MiamiHo Chi Minh City

MIA - SGN

MIASGN

Miami

jue. 4/16

6:15 am-9:55 pm

2 stops28h 40m

Ho Chi Minh City

mar. 4/28

7:00 am-7:54 am

2 stops35h 54m

$893

MiamiHo Chi Minh City

MIA - SGN

MIASGN

Miami

dom. 4/12

6:15 am-12:15 am

2 stops31h 00m

Ho Chi Minh City

lun. 4/20

7:00 am-11:09 am

3 stops39h 09m

$900

MiamiHo Chi Minh City

MIA - SGN

MIASGN

Miami

lun. 3/16

6:02 pm-10:55 pm

2 stops41h 53m

Ho Chi Minh City

vie. 4/17

7:00 am-7:54 am

2 stops35h 54m

$988

MiamiHo Chi Minh City

MIA - SGN

MIASGN

Miami

mié. 3/11

7:00 am-10:55 pm

2 stops52h 55m

Ho Chi Minh City

lun. 3/23

11:05 pm-11:06 pm

2 stops35h 01m

$989

MiamiHo Chi Minh City

MIA - SGN

MIASGN

Miami

vie. 7/10

9:00 pm-10:05 pm

3 stops38h 05m

Ho Chi Minh City

mar. 8/11

7:00 am-5:00 pm

2 stops45h 00m

$1,007

MiamiHo Chi Minh City

MIA - SGN

MIASGN

Miami

mié. 2/25

10:58 am-9:50 pm

3 stops70h 52m

Ho Chi Minh City

sáb. 3/7

6:00 am-5:43 am

3 stops35h 43m

$1,028

MiamiHo Chi Minh City

MIA - SGN

MIASGN

Miami

dom. 2/15

8:35 am-10:55 pm

2 stops50h 20m

Ho Chi Minh City

mié. 2/25

6:00 am-5:51 am

3 stops35h 51m

$1,030

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Showing 1-10 of 43 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, March is the cheapest month in which you can book a flight from Key Largo to Vietnam (average of $590). Flying from Key Largo to Vietnam in June is currently the most expensive (average of $1,270). 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.

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 enero 29, 2026.
Read reviews from past customers who have flown ANA, 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.
ANA
8.4
Very good
1,078 reviews

Food

7.7

Boarding

8.5

Comfort

8.2

Overall

8.4

Crew

8.7

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Lindsey,Jan 2026

CGK - HND

All of the flight attendants were very nice & attentive. The bathrooms were kept very clean. We have no complaints!
ANA
8.4
Very good
1,078 reviews
ANA
8.4
Very good
1,078 reviews

Food

7.7

Boarding

8.5

Comfort

8.2

Overall

8.4

Crew

8.7

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Lindsey,Jan 2026

CGK - HND

All of the flight attendants were very nice & attentive. The bathrooms were kept very clean. We have no complaints!
Qatar Airways
7.4
Good
3,727 reviews
ANA
8.4
Very good
1,078 reviews

Food

7.7

Boarding

8.5

Comfort

8.2

Overall

8.4

Crew

8.7

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Lindsey,Jan 2026

CGK - HND

All of the flight attendants were very nice & attentive. The bathrooms were kept very clean. We have no complaints!
United Airlines
7.4
Good
9,215 reviews
ANA
8.4
Very good
1,078 reviews

Food

7.7

Boarding

8.5

Comfort

8.2

Overall

8.4

Crew

8.7

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Lindsey,Jan 2026

CGK - HND

All of the flight attendants were very nice & attentive. The bathrooms were kept very clean. We have no complaints!
Turkish Airlines
7.3
Good
4,208 reviews
ANA
8.4
Very good
1,078 reviews

Food

7.7

Boarding

8.5

Comfort

8.2

Overall

8.4

Crew

8.7

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Lindsey,Jan 2026

CGK - HND

All of the flight attendants were very nice & attentive. The bathrooms were kept very clean. We have no complaints!
American Airlines
7.2
Good
11,206 reviews
ANA
8.4
Very good
1,078 reviews

Food

7.7

Boarding

8.5

Comfort

8.2

Overall

8.4

Crew

8.7

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Lindsey,Jan 2026

CGK - HND

All of the flight attendants were very nice & attentive. The bathrooms were kept very clean. We have no complaints!

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 26h 55m. Fly via Delta, United Airlines, or Korean Air 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?

    $374 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on American Airlines and Qatar Airways, with prices starting from $444 and $488, 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, March is the cheapest month in which you can book a flight from Key Largo to Vietnam (average of $590). Flying from Key Largo to Vietnam in June is currently the most expensive (average of $1,270). 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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Alternative routes for Key Largo to Vietnam

See prices for flight routes from nearby airports that may be better suited for you.
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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 enero 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$590Average$1,139FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$713Average$1,053FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$742Average$1,303FlexibilityNo cancel feeOn-time71%
Korean AirCheapest$793Average$1,461FlexibilityNo cancel feeOn-time81%
ANACheapest$876Average$1,162FlexibilityNo cancel feeOn-time80%
EVA AirCheapest$887Average$1,188FlexibilityNo cancel feeOn-time74%
China AirlinesCheapest$921Average$1,374FlexibilityNo cancel feeOn-time70%
Qatar AirwaysCheapest$971Average$1,424FlexibilityNo cancel feeOn-time68%
Japan AirlinesCheapest$1,027Average$1,138FlexibilityNo cancel feeOn-time79%
Air CanadaCheapest$1,079Average$1,361FlexibilityNo cancel feeOn-time67%

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