Cheap flights from San Francisco to Bangkok from $399 SFO → BKK, DMK
San Francisco International Airport (SFO) → Suvarnabhumi Airport (BKK), Don Mueang International Airport (DMK)
The cheapest return found recently is $791 with Philippine Airlines, 11 May 2027 – 31 May 2027, found yesterday. The cheapest one-way found recently is $399 with Philippine Airlines, 1 Mar 2027, found 3 days ago.
- Cheapest one-way found recently
- $399, Philippine Airlines, found 3 days ago
- Cheapest return found recently
- $791, 11 May 2027 to 31 May 2027
- Usual return price
- $857 to $1,247
- Cheapest month to fly
- January 2027, return fares from $791 found in the last 7 days
Return
The cheapest return fare on each of 6 departure dates is usually $857 to $1,247.
Cheapest return found recently
$791
11 May 2027 – 31 May 2027 · Philippine Airlines
San Francisco International Airport (SFO) → Suvarnabhumi Airport (BKK)
Leaves 12:30 a.m. · Return leaves 5:55 p.m. · 38 h 50 min of travel, both ways together
out 1 stop, back 1 stop · via Ninoy Aquino International Airport (MNL)
found yesterday
Cheapest nonstop return
None seen yet.
Found recently, and the cheapest we hold
$791 11 May 2027 – 31 May 2027found yesterdaySee prices for these dates
It is also the cheapest return we hold, of any age.
What have prices looked like?
Over 50 days, 24 Sept to 12 Nov, the cheapest return we saw each day was $428 to $910.
Those were the prices on those days, not today's.
Is this a good return price?
Compared with the cheapest return fare on each of 6 departure dates from 27 Dec to 2 Jun 2027, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.
Could nearby dates be cheaper?
We hold no other 20-night return fares leaving within 3 days of 11 May 2027 to compare.
Every date we hold
51 fares on 6 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 27 Dec – 13 Jan 2027 | $1,275 | Frontier Airlines | San Francisco International Airport (SFO) → Suvarnabhumi Airport (BKK) | out 2 stops, back 2 stops | found 6 days ago | See prices for these dates |
| 28 Dec – 13 Jan 2027 | $1,340 | Asiana Airlines | San Francisco International Airport (SFO) → Suvarnabhumi Airport (BKK) | out 1 stop, back 2 stops | found yesterday | See prices for these dates |
| 29 Dec – 12 Jan 2027 | $1,162 | Frontier Airlines | San Francisco International Airport (SFO) → Suvarnabhumi Airport (BKK) | out 2 stops, back 2 stops | found 6 days ago | See prices for these dates |
| 13 Jan 2027 – 27 Jan 2027 | $791 | Asiana Airlines | San Francisco International Airport (SFO) → Suvarnabhumi Airport (BKK) | out 1 stop, back 1 stop | found 4 days ago | See prices for these dates |
| 11 May 2027 – 31 May 2027 | $791 | Philippine Airlines | San Francisco International Airport (SFO) → Suvarnabhumi Airport (BKK) | out 1 stop, back 1 stop | found yesterday | See prices for these dates |
| 2 Jun 2027 – 16 Jul 2027 | $1,055 | Air Premia | San Francisco International Airport (SFO) → Suvarnabhumi Airport (BKK) | out 1 stop, back 1 stop | found 6 days ago | See prices for these dates |
Which month looks cheapest?
January 2027 is the cheapest month — from $791.
Airlines on the cheapest dates: Frontier Airlines, Asiana Airlines, Philippine Airlines, Air Premia.
One-way
Not enough comparable prices yet for a usual one-way price.
Cheapest one-way found recently
$399
1 Mar 2027 · Philippine Airlines
San Francisco International Airport (SFO) → Suvarnabhumi Airport (BKK)
Leaves 10:40 p.m. · 29 h 5 min trip
1 stop · via Ninoy Aquino International Airport (MNL) · 11 h connection
found 3 days ago
Cheapest nonstop one-way
None seen yet.
Found recently, and the cheapest we hold
$399 1 Mar 2027found 3 days agoOpen this trip
It is also the cheapest one-way we hold, of any age.
What have prices looked like?
Over 47 days, 25 Sept to 12 Nov, the cheapest one-way we saw each day was $236 to $868.
Those were the prices on those days, not today's.
Is this a good one-way price?
Not enough comparable prices yet: we hold one-way fares on 1 departure date and need at least 3 to say what is usual.
Could nearby dates be cheaper?
We hold no other one-way fares leaving within 3 days of 1 Mar 2027 to compare.
Every date we hold
13 fares on 1 departure dates
See every date as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 1 Mar 2027 | $399 | Philippine Airlines | San Francisco International Airport (SFO) → Suvarnabhumi Airport (BKK) | 1 stop | found 3 days ago | Open this trip |
Airlines on the cheapest dates: Philippine Airlines.
Premium cabin fares from San Francisco to Bangkok
We hold no premium economy, business or first-class fares for this route: we collect them for the busiest routes, and this one is not among them yet.
Today's prices for 11 May 2027 – 31 May 2027 in another cabin: Premium economy · Business · First
Today's prices for 1 Mar 2027 in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for San Francisco to Bangkok?
Return
Fares 90 to 179 days before departure were typically 7% lower than 14 to 29 days before departure.
From the cheapest return each day between 24 Sept and 12 Nov (50 days), grouped by how many days ahead the flight left; one adult in economy.
Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.
Prices reflect recent searches — current fares may differ.
See these ranges as a table
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 14–29 days | $824 | $719 | +8% | 31 |
| 30–59 days | $877 | $719 | +15% | 43 |
| 60–89 days | $862 | $765 | +13% | 40 |
| 90–179 days | $765 | $428 | Cheapest seen | 34 |
| 180+ days | $868 | $791 | +14% | 14 |
One-way
The cheapest fares were 30 to 59 days before departure.
From the cheapest one-way each day between 25 Sept and 12 Nov (47 days), grouped by how many days ahead the flight left; one adult in economy.
Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.
Prices reflect recent searches — current fares may differ.
See these ranges as a table
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 30–59 days | $308 | $293 | Cheapest seen | 8 |
| 60–89 days | $312 | $288 | +1% | 25 |
| 90–179 days | $364 | $295 | +18% | 32 |
| 180+ days | $457 | $457 | +48% | 8 |
Could a nearby airport be cheaper?
A different airport at either end can change the fare — sometimes a lot.
Return
San Jose → Bangkok
67 km from San Francisco
$1,002
$211 more than flying from San Francisco
11 May 2027 – 31 May 2027 · SJC → BKK · out 2 stops, back 1 stop
found yesterday
Sacramento → Bangkok
121 km from San Francisco
$1,123
$332 more than flying from San Francisco
25 Feb 2027 – 14 Mar 2027 · SMF → BKK · out 2 stops, back 1 stop
found 6 days ago
Oakland → Bangkok
13 km from San Francisco
$2,563
$1,772 more than flying from San Francisco
27 Dec – 13 Jan 2027 · OAK → BKK · out 2 stops, back 2 stops
found 6 days ago
Cheapest recent price on each route — round trip, per traveler in Economy. Distances are in a straight line.
Live price for these dates
The cheapest return found recently is for 11 May 2027 – 31 May 2027. A live search on this page shows what those dates cost now, for one adult in economy.
Questions about this trip
How much is a return flight from San Francisco to Bangkok?
The cheapest return found recently is $791 with Philippine Airlines, 11 May 2027 to 31 May 2027, found yesterday. The cheapest return fare on each of 6 departure dates is usually $857 to $1,247.
How much is a one-way flight from San Francisco to Bangkok?
The cheapest one-way found recently is $399 with Philippine Airlines, 1 Mar 2027, found 3 days ago.
What is the cheapest month to fly from San Francisco to Bangkok?
January 2027 is the cheapest month for a return, from $791, 13 Jan 2027 to 27 Jan 2027, found 4 days ago.
How far ahead should I book a flight from San Francisco to Bangkok?
In 50 days of prices between 24 Sept and 12 Nov, return fares 90 to 179 days before departure were typically 7% lower than 14 to 29 days before departure. In 47 days of prices between 25 Sept and 12 Nov, one-way fares were cheapest 30 to 59 days before departure.
How long is the flight from San Francisco to Bangkok?
The cheapest one-way found recently, with Philippine Airlines on 1 Mar 2027, takes 29 h 5 min with 1 stop, including a 11 h connection.
Which airlines have the cheapest flights from San Francisco to Bangkok?
Between 27 Dec and 2 Jun 2027, Frontier Airlines has the cheapest return on 2 of the 6 departure dates we hold, Asiana Airlines on 2 and Philippine Airlines on 1.
Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work