San Jose to Bangkok SJC → BKK
Norman Y. Mineta San Jose International Airport (SJC) → Suvarnabhumi Airport (BKK)
The cheapest return found recently is $2,327 with Korean Air, 20 Dec – 7 Jan 2027, found 3 days ago. The cheapest one-way found recently is $474 with Korean Air, 17 Jan 2027, found yesterday.
Return
Not enough comparable prices yet for a usual return price.
Cheapest return found recently
$2,327
20 Dec – 7 Jan 2027 · Korean Air
Norman Y. Mineta San Jose International Airport (SJC) → Suvarnabhumi Airport (BKK)
Leaves 7:15 a.m. · Return leaves 1:05 a.m. · 51 h 19 min of travel, both ways together
out 2 stops, back 2 stops
found 3 days ago
Cheapest nonstop return
None seen yet.
Found recently, and the cheapest we hold
$2,327 20 Dec – 7 Jan 2027found 3 days agoSee prices for these dates
$988 10 Jan 2027 – 3 Feb 2027found 4 days agoSee prices for these dates
What have prices looked like?
Over 25 days, 24 Sept to 18 Oct, the cheapest return we saw each day was $868 to $1,154.
At $2,327, the cheapest return found recently is above that range.
25 days is a short history, so treat this range as an early guide.
Those were the prices on those days, not today's.
Is this a good return price?
Not enough comparable prices yet: we hold return fares on 2 departure dates and need at least 3 to say what is usual.
Could nearby dates be cheaper?
We hold no other 18-night return fares leaving within 3 days of 20 Dec to compare.
Every date we hold
2 fares on 2 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 20 Dec – 7 Jan 2027 | $2,327 | Korean Air | Norman Y. Mineta San Jose International Airport (SJC) → Suvarnabhumi Airport (BKK) | out 2 stops, back 2 stops | found 3 days ago | See prices for these dates |
| 10 Jan 2027 – 3 Feb 2027 | $988 | American Airlines | Norman Y. Mineta San Jose International Airport (SJC) → Suvarnabhumi Airport (BKK) | out 2 stops, back 1 stop | found 4 days ago | See prices for these dates |
Which month looks cheapest?
January 2027 is the cheapest month — from $988.
Airlines on the cheapest dates: Korean Air, American Airlines.
One-way
The cheapest one-way fare on each of 5 departure dates is usually $551 to $594.
Cheapest one-way found recently
$474
17 Jan 2027 · Korean Air
Norman Y. Mineta San Jose International Airport (SJC) → Suvarnabhumi Airport (BKK)
Leaves 7:15 a.m. · 23 h 15 min trip
2 stops
found yesterday
Cheapest nonstop one-way
None seen yet.
Found recently, and the cheapest we hold
$474 17 Jan 2027found yesterdayOpen this trip
It is also the cheapest one-way we hold, of any age.
What have prices looked like?
Over 24 days, 24 Sept to 18 Oct, the cheapest one-way we saw each day was $442 to $945.
24 days is a short history, so treat this range as an early guide.
Those were the prices on those days, not today's.
Is this a good one-way price?
Compared with the cheapest one-way fare on each of 5 departure dates from 28 Nov to 5 Feb 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 one-way fares leaving within 3 days of 17 Jan 2027 to compare.
Every date we hold
5 fares on 5 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 28 Nov | $594 | Alaska Airlines | Norman Y. Mineta San Jose International Airport (SJC) → Suvarnabhumi Airport (BKK) | 2 stops | found today | Open this trip |
| 17 Jan 2027 | $474 | Korean Air | Norman Y. Mineta San Jose International Airport (SJC) → Suvarnabhumi Airport (BKK) | 2 stops | found yesterday | Open this trip |
| 26 Jan 2027 | $551 | Alaska Airlines | Norman Y. Mineta San Jose International Airport (SJC) → Suvarnabhumi Airport (BKK) | 2 stops | found 2 days ago | Open this trip |
| 2 Feb 2027 | $551 | Alaska Airlines | Norman Y. Mineta San Jose International Airport (SJC) → Suvarnabhumi Airport (BKK) | 2 stops | found 2 days ago | Open this trip |
| 5 Feb 2027 | $617 | American Airlines | Norman Y. Mineta San Jose International Airport (SJC) → Suvarnabhumi Airport (BKK) | 2 stops | found 2 days ago | Open this trip |
Which month looks cheapest?
January 2027 is the cheapest month — from $474.
Airlines on the cheapest dates: Alaska Airlines, Korean Air, American Airlines.
Premium cabin fares from San Jose 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 20 Dec – 7 Jan 2027 in another cabin: Premium economy · Business · First
Today's prices for 17 Jan 2027 in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for San Jose to Bangkok?
Return
The cheapest fares were 90 to 179 days before departure.
From the cheapest return each day between 24 Sept and 18 Oct (25 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 | $1,008 | $868 | +2% | 13 |
| 30–59 days | $1,106 | $868 | +12% | 19 |
| 60–89 days | $1,233 | $988 | +24% | 25 |
| 90–179 days | $991 | $985 | Cheapest seen | 17 |
One-way
Not enough history yet: in 24 days of one-way prices, 24 Sept to 18 Oct, fewer than 3 booking ranges had prices on 7 days or more.
Could a nearby airport be cheaper?
A different airport at either end can change the fare — sometimes a lot.
Return
San Francisco → Bangkok
67 km from San Jose
$1,822
$505 less than flying from San Jose
20 Dec – 7 Jan 2027 · SFO → DMK · out 3 stops, back 2 stops
found 3 days ago
Cheapest recent price on each route — round trip, per traveler in Economy. Distances are in a straight line.
One-way
San Francisco → Bangkok
67 km from San Jose
$293
$181 less than flying from San Jose
28 Nov · SFO → BKK · 1 stop
found today
Oakland → Bangkok
61 km from San Jose
$614
$140 more than flying from San Jose
2 Feb 2027 · OAK → BKK · 2 stops
found 2 days ago
Cheapest recent price on each route — one way, per traveler in Economy. Distances are in a straight line.
Live price for these dates
The cheapest return found recently is for 20 Dec – 7 Jan 2027. A live search on this page shows what those dates cost now, for one adult in economy.
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