Cheap flights from Baltimore to Bangkok from $781 BWI → BKK, DMK
Baltimore/Wash International Thurgood Marshall Airport (BWI) → Suvarnabhumi Airport (BKK), Don Mueang International Airport (DMK)
The cheapest return found recently is $1,345 with Icelandair, 21 Jan 2027 – 10 Feb 2027, found 2 days ago. The cheapest one-way found recently is $781 with Cathay Pacific, 14 Jul 2027, found 6 days ago.
- Cheapest one-way found recently
- $781, found 6 days ago
- Cheapest return found recently
- $1,345, 21 Jan 2027 to 10 Feb 2027
- Usual return price
- $1,231 to $1,281
- Cheapest month to fly
- November 2026, return fares from $1,212 found in the last 7 days
Return
The cheapest return fare on each of 5 departure dates is usually $1,231 to $1,281.
Cheapest return found recently
$1,345
21 Jan 2027 – 10 Feb 2027 · Icelandair
Baltimore/Wash International Thurgood Marshall Airport (BWI) → Suvarnabhumi Airport (BKK)
Leaves 7:40 p.m. · Return leaves 1:05 a.m. · 63 h 30 min of travel, both ways together
out 3 stops, back 3 stops
found 2 days ago
Cheapest nonstop return
None seen yet.
Found recently, and the cheapest we hold
$1,345 21 Jan 2027 – 10 Feb 2027found 2 days agoSee prices for these dates
$1,212 22 Nov – 4 Decfound 4 days agoSee prices for these dates
What have prices looked like?
Over 49 days, 24 Sept to 11 Nov, the cheapest return we saw each day was $910 to $1,227.
At $1,345, the cheapest return found recently is above that range.
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 5 departure dates from 22 Nov to 21 Jan 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 21 Jan 2027 to compare.
Every date we hold
19 fares on 5 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 22 Nov – 4 Dec | $1,212 | American Airlines | Baltimore/Wash International Thurgood Marshall Airport (BWI) → Suvarnabhumi Airport (BKK) | out 2 stops, back 2 stops | found 4 days ago | See prices for these dates |
| 29 Nov – 19 Dec | $1,281 | American Airlines | Baltimore/Wash International Thurgood Marshall Airport (BWI) → Suvarnabhumi Airport (BKK) | out 2 stops, back 2 stops | found 6 days ago | See prices for these dates |
| 8 Dec – 22 Dec | $1,246 | Frontier Airlines | Baltimore/Wash International Thurgood Marshall Airport (BWI) → Suvarnabhumi Airport (BKK) | out 3 stops, back 1 stop | found 7 days ago | See prices for these dates |
| 21 Dec – 27 Dec | $1,927 | Frontier Airlines | Baltimore/Wash International Thurgood Marshall Airport (BWI) → Don Mueang International Airport (DMK) | out 3 stops, back 1 stop | found 2 days ago | See prices for these dates |
| 21 Jan 2027 – 10 Feb 2027 | $1,231 | Icelandair | Baltimore/Wash International Thurgood Marshall Airport (BWI) → Suvarnabhumi Airport (BKK) | out 3 stops, back 3 stops | found 7 days ago | See prices for these dates |
Which month looks cheapest?
November 2026 is the cheapest month — from $1,212.
Airlines on the cheapest dates: American Airlines, Frontier Airlines, Icelandair.
One-way
Not enough comparable prices yet for a usual one-way price.
Cheapest one-way found recently
$781
14 Jul 2027 · Cathay Pacific
Baltimore/Wash International Thurgood Marshall Airport (BWI) → Suvarnabhumi Airport (BKK)
Leaves 10:28 a.m. · 26 h 42 min trip
2 stops
found 6 days ago
Cheapest nonstop one-way
None seen yet.
Found recently, and the cheapest we hold
$781 14 Jul 2027found 6 days agoOpen this trip
It is also the cheapest one-way we hold, of any age.
What have prices looked like?
Over 26 days, 4 Oct to 11 Nov, the cheapest one-way we saw each day was $533 to $781.
At $781, the cheapest one-way found recently is at the high end of that range.
26 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?
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 14 Jul 2027 to compare.
Every date we hold
1 fares on 1 departure dates
See every date as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 14 Jul 2027 | $781 | Cathay Pacific | Baltimore/Wash International Thurgood Marshall Airport (BWI) → Suvarnabhumi Airport (BKK) | 2 stops | found 6 days ago | Open this trip |
Airlines on the cheapest dates: Cathay Pacific.
Premium cabin fares from Baltimore 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 21 Jan 2027 – 10 Feb 2027 in another cabin: Premium economy · Business · First
Today's prices for 14 Jul 2027 in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Baltimore to Bangkok?
Return
Fares 30 to 59 days before departure were typically 5% lower than 0 to 6 days before departure.
From the cheapest return each day between 24 Sept and 11 Nov (49 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 |
|---|---|---|---|---|
| 0–6 days | $1,215 | $1,052 | +5% | 17 |
| 7–13 days | $1,215 | $1,105 | +5% | 28 |
| 14–29 days | $1,227 | $1,067 | +6% | 25 |
| 30–59 days | $1,153 | $1,058 | Cheapest seen | 45 |
| 60–89 days | $1,181 | $1,143 | +2% | 47 |
| 90–179 days | $1,221 | $910 | +6% | 43 |
| 180+ days | $1,388 | $1,203 | +20% | 30 |
One-way
Not enough history yet: in 26 days of one-way prices, 4 Oct to 11 Nov, 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
Washington → Bangkok
57 km from Baltimore
$849
$496 less than flying from Baltimore
21 Jan 2027 – 10 Feb 2027 · IAD → BKK · out 1 stop, back 1 stop
found 2 days ago
Philadelphia → Bangkok
145 km from Baltimore
$1,125
$220 less than flying from Baltimore
26 Nov – 4 Dec · PHL → BKK · out 2 stops, back 2 stops
found 2 days ago
Harrisburg → Bangkok
105 km from Baltimore
$1,439
$94 more than flying from Baltimore
16 Nov – 27 Nov · MDT → BKK · out 2 stops, back 2 stops
found 4 days ago
Cheapest recent price on each route — round trip, per traveler in Economy. Distances are in a straight line.
One-way
Washington → Bangkok
57 km from Baltimore
$695
$86 less than flying from Baltimore
14 Jul 2027 · DCA → BKK · 2 stops
found 6 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 21 Jan 2027 – 10 Feb 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 Baltimore to Bangkok?
The cheapest return found recently is $1,345 with Icelandair, 21 Jan 2027 to 10 Feb 2027, found 2 days ago. The cheapest return we hold, of any age, is $1,212 with American Airlines, 22 Nov to 4 Dec, found 4 days ago. The cheapest return fare on each of 5 departure dates is usually $1,231 to $1,281.
How much is a one-way flight from Baltimore to Bangkok?
The cheapest one-way found recently is $781 with Cathay Pacific, 14 Jul 2027, found 6 days ago.
What is the cheapest month to fly from Baltimore to Bangkok?
November 2026 is the cheapest month for a return, from $1,212, 22 Nov to 4 Dec, found 4 days ago.
How far ahead should I book a flight from Baltimore to Bangkok?
In 49 days of prices between 24 Sept and 11 Nov, return fares 30 to 59 days before departure were typically 5% lower than 0 to 6 days before departure.
How long is the flight from Baltimore to Bangkok?
The cheapest one-way found recently, with Cathay Pacific on 14 Jul 2027, takes 26 h 42 min with 2 stops.
Which airlines have the cheapest flights from Baltimore to Bangkok?
Between 22 Nov and 21 Jan 2027, American Airlines has the cheapest return on 2 of the 5 departure dates we hold, Frontier Airlines on 2 and Icelandair 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