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Cheap flights from the United States to Southeast Asia from ₹ 39,685

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 14/9. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — BKK
2 Sep — 9 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from USA to Southeast Asia

Enter your travel dates to find the best prices.

Cheapest flights from USA to Southeast Asia
Explore the most affordable flight options available from USA to Southeast Asia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 August 2026.

Thu 1/1012:00
SFO
-
BKK
1 stop22h 40m
China Eastern
Fri 30/1001:55
BKK
-
SFO
1 stop22h 05m
China Eastern
Deal found 3/8₹ 76,795
Thu 1/1012:00
SFO
-
BKK
1 stop22h 40m
China Eastern
Wed 28/1007:50
BKK
-
SFO
2 stops40h 10m
China Eastern
Deal found 3/8₹ 77,558
Sat 12/922:50
SFO
-
BKK
1 stop21h 30m
Vietnam Airlines
Wed 23/911:20
BKK
-
SFO
1 stop20h 35m
Vietnam Airlines
Deal found 29/7₹ 81,088
Wed 30/922:50
SFO
-
BKK
1 stop29h 40m
Vietnam Airlines
Sun 25/1014:20
BKK
-
SFO
1 stop17h 40m
Vietnam Airlines
Deal found 3/8₹ 81,183
Mon 2/1112:00
SFO
-
BKK
1 stop19h 25m
China Eastern
Fri 20/1110:45
BKK
-
SFO
1 stop37h 15m
China Eastern
Deal found 30/7₹ 81,565
Sat 21/1114:47
SFO
-
BKK
2 stops41h 33m
Korean Air
Sun 13/1200:55
BKK
-
SFO
1 stop23h 35m
Korean Air
Deal found 31/7₹ 81,756
Fri 11/912:50
SFO
-
BKK
1 stop22h 15m
Korean Air
Tue 22/921:40
BKK
-
SFO
1 stop27h 00m
Korean Air
Deal found 29/7₹ 82,042
Mon 2/1112:00
SFO
-
BKK
1 stop19h 25m
China Eastern
Wed 18/1107:50
BKK
-
SFO
2 stops40h 10m
China Eastern
Deal found 30/7₹ 82,233
Sat 7/1112:00
SFO
-
BKK
1 stop19h 25m
China Eastern
Thu 19/1115:55
BKK
-
SFO
2 stops56h 05m
China Eastern
Deal found 3/8₹ 82,328
Wed 4/1100:20
SFO
-
BKK
1 stop37h 50m
United Airlines
Mon 23/1107:10
BKK
-
SFO
1 stop17h 05m
United Airlines
Deal found 3/8₹ 82,423
Sat 12/916:59
SFO
-
BKK
2 stops30h 36m
Korean Air
Thu 17/902:35
BKK
-
SFO
1 stop22h 05m
Korean Air
Deal found 29/7₹ 82,519
Sun 25/1006:00
OAK
-
BKK
2 stops28h 45m
Delta
Tue 17/1109:40
BKK
-
OAK
2 stops29h 15m
Delta
Deal found 2/8₹ 83,091

Find flight deals from USA to Southeast Asia

Keep the following information in mind while searching for USA to Southeast Asia flight deals. Data was last updated 3 August 2026.

Round-trip from

₹ 81,088

One-way from

₹ 39,685

Popular in

December

Cheapest in

February

Average price

₹ 95,684
Vietnam Airlines
  • Vietnam Airlines
  • 12/9-24/9
  • 2 total stops
  • 44h 55m total
  • USA to Southeast Asia
Search Deals
China Eastern
  • China Eastern
  • 14/9
  • 1 total stop
  • 37h 50m total
  • USA to Southeast Asia
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (₹ 644,581 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (₹ 390,673 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from USA to Southeast Asia 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 454,620 searches. Data last updated 3 August 2026.
Use the filters below to find and compare flights from the United States to Southeast Asia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

San FranciscoBangkok

SFO - BKK

SFOBKK

San Francisco

Fri 23/10

16:50-13:25

2 stops30h 35m

Bangkok Suvarnabhumi

Sat 7/11

09:40-09:30

1 stop38h 50m

₹ 82,519

San FranciscoBangkok

SFO - BKK

SFOBKK

San Francisco

Sun 16/8

17:41-09:35

2 stops25h 54m

Bangkok Suvarnabhumi

Sat 22/8

09:35-16:55

1 stop21h 20m

₹ 82,614

San FranciscoBangkok

SFO - BKK

SFOBKK

San Francisco

Fri 23/10

16:50-13:25

2 stops30h 35m

Bangkok Suvarnabhumi

Tue 10/11

23:15-09:30

1 stop25h 15m

₹ 82,614

San FranciscoBangkok

SFO - BKK

SFOBKK

San Francisco

Tue 3/11

06:00-00:45

2 stops27h 45m

Bangkok Suvarnabhumi

Tue 10/11

09:40-22:03

2 stops27h 23m

₹ 83,091

San FranciscoBangkok

SFO - BKK

SFOBKK

San Francisco

Tue 24/11

06:00-00:45

2 stops27h 45m

Bangkok Suvarnabhumi

Tue 15/12

23:15-17:03

2 stops32h 48m

₹ 83,091

San FranciscoBangkok

SFO - BKK

SFOBKK

San Francisco

Tue 3/11

06:00-00:45

2 stops27h 45m

Bangkok Suvarnabhumi

Tue 24/11

09:40-23:31

2 stops28h 51m

₹ 83,091

San FranciscoBangkok

SFO - BKK

SFOBKK

San Francisco

Wed 4/11

06:00-13:25

2 stops40h 25m

Bangkok Suvarnabhumi

Sat 14/11

09:40-17:03

2 stops22h 23m

₹ 83,091

OaklandBangkok

OAK - BKK

OAKBKK

Oakland

Thu 29/10

06:00-23:20

2 stops27h 20m

Bangkok Suvarnabhumi

Sun 8/11

09:40-16:22

2 stops21h 42m

₹ 83,091

San FranciscoBangkok

SFO - BKK

SFOBKK

San Francisco

Thu 7/1

07:15-11:30

2 stops37h 15m

Bangkok Suvarnabhumi

Tue 26/1

09:10-15:20

1 stop21h 10m

₹ 83,473

OaklandBangkok

OAK - BKK

OAKBKK

Oakland

Wed 16/9

17:00-01:05

2 stops42h 05m

Bangkok Suvarnabhumi

Tue 22/9

02:35-23:59

2 stops35h 24m

₹ 83,568

Flights are sorted by cheapest return flights first.

Deals found on 29/7

Showing 1-10 of 60 resultsSorted by cheapest first
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6

Best time to book a flight from USA to Southeast Asia

Have a flexible travel schedule? Discover the best time to fly to Southeast Asia from USA with our price prediction graph.
Estimated return 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 the United States to Southeast Asia

What is the cheapest month to book a flight from USA to Southeast Asia?

Currently, September is the cheapest month in which you can book a flight from USA to Southeast Asia (average of ₹ 86,621). Flying from USA to Southeast Asia in December is currently the most expensive (average of ₹ 138,326). 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 US to YJX?

Find hourly flight availability from USA to Southeast Asia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 3 August 2026.

When flying from USA to Southeast Asia, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 69% versus a flight in the morning.

Weekly flight availability from USA to Southeast Asia

Explore weekly flight availability from USA to Southeast Asia. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 3 August 2026.

The most flights from US0 to zzYJX are scheduled on a Monday (1 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (1 on average).

How far ahead should I book a flight from USA to Southeast Asia?

Booking 83 days in advance of your planned departure date is, on average, the best time to get cheap flights from USA to Southeast Asia. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Reviews of airlines servicing Southeast Asia

Get insights into the airlines that provide service to Southeast Asia. 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 Southeast Asia. Reviews last updated 3 August 2026.
Get a feel of what it's like to fly with China Airlines,Asiana Airlines, andCathay Pacific from the United States to Southeast Asia by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
China Airlines
8.3
Very Good
838 reviews
Check prices

Boarding

8.3

Food

7.8

Comfort

8.0

Entertainment

8.0

Overall

8.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

A,Feb 2026

SEA - TPE

China Airlines has improved significantly over the years. This is the first time we fly on their business class after 20+ years. Both hardware and services impressed us. Will definitely fly with again in the future.
China Airlines
8.3
Very Good
838 reviews
China Airlines
8.3
Very Good
838 reviews
Check prices

Boarding

8.3

Food

7.8

Comfort

8.0

Entertainment

8.0

Overall

8.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

A,Feb 2026

SEA - TPE

China Airlines has improved significantly over the years. This is the first time we fly on their business class after 20+ years. Both hardware and services impressed us. Will definitely fly with again in the future.
Asiana Airlines
8.1
Very Good
553 reviews
China Airlines
8.3
Very Good
838 reviews
Check prices

Boarding

8.3

Food

7.8

Comfort

8.0

Entertainment

8.0

Overall

8.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

A,Feb 2026

SEA - TPE

China Airlines has improved significantly over the years. This is the first time we fly on their business class after 20+ years. Both hardware and services impressed us. Will definitely fly with again in the future.
Cathay Pacific
7.6
Good
1,436 reviews
China Airlines
8.3
Very Good
838 reviews
Check prices

Boarding

8.3

Food

7.8

Comfort

8.0

Entertainment

8.0

Overall

8.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

A,Feb 2026

SEA - TPE

China Airlines has improved significantly over the years. This is the first time we fly on their business class after 20+ years. Both hardware and services impressed us. Will definitely fly with again in the future.
United Airlines
7.4
Good
10,060 reviews
China Airlines
8.3
Very Good
838 reviews
Check prices

Boarding

8.3

Food

7.8

Comfort

8.0

Entertainment

8.0

Overall

8.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

A,Feb 2026

SEA - TPE

China Airlines has improved significantly over the years. This is the first time we fly on their business class after 20+ years. Both hardware and services impressed us. Will definitely fly with again in the future.
Philippine Airlines
7.3
Good
1,013 reviews
China Airlines
8.3
Very Good
838 reviews
Check prices

Boarding

8.3

Food

7.8

Comfort

8.0

Entertainment

8.0

Overall

8.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

A,Feb 2026

SEA - TPE

China Airlines has improved significantly over the years. This is the first time we fly on their business class after 20+ years. Both hardware and services impressed us. Will definitely fly with again in the future.

Related info for your journey

Find useful and relevant information for your journey from USA to Southeast Asia. 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 USA to Southeast Asia?

    There are many flights that can get you from USA to Southeast Asia in 25h 54m. Fly via Korean Air, United Airlines, or Delta to get the fastest option. USA and Southeast Asia are separated by a distance of 12740 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • Can I find deals for flights from USA to Southeast Asia that include hotel bookings?

    Yes. In addition to deals on USA to Southeast Asia flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from USA to Southeast Asia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from USA to Southeast Asia.

  • Can I find deals for business class flights from USA to Southeast Asia?

    Yes. Cheapflights offers flight deals from USA to Southeast Asia 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 USA to Southeast Asia?

    Currently, September is the cheapest month in which you can book a flight from USA to Southeast Asia (average of ₹ 86,621). Flying from USA to Southeast Asia in December is currently the most expensive (average of ₹ 138,326). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for USA to Southeast Asia

See prices for flight routes from nearby airports that may be better suited for you.
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Top 7 airlines flying from USA to Southeast Asia

Discover the top 7 airlines that operate flights from USA to Southeast Asia. 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 454,620 searches. Data last updated 3 August 2026.
AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest₹ 47,345Average₹ 48,076FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Singapore AirlinesCheapest₹ 51,870Average₹ 59,711FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
Cathay PacificCheapest₹ 55,869Average₹ 82,127FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights
China AirlinesCheapest₹ 62,335Average₹ 87,190FlexibilityNo cancel feeOn-time70%
Search China Airlines flights
Philippine AirlinesCheapest₹ 62,525Average₹ 123,572FlexibilityNo cancel feeOn-time60%
Search Philippine Airlines flights
Asiana AirlinesCheapest₹ 65,207Average₹ 83,411FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
United AirlinesCheapest₹ 71,770Average₹ 95,544FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from USA to Southeast Asia?

When you search for this flight from USA to Southeast Asia, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from USA to Southeast Asia?

Cheapflights simply makes it quick and affordable to book flights from USA to Southeast Asia by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from USA to Southeast Asia with no change fees?

Certainly. Search results for flights to Southeast Asia from USA shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from USA to Southeast Asia become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Southeast Asia from USA today and book when prices fit your budget.

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