How Much Is a Flight to Thailand (2026 Data)

A round-trip flight from the United States to Bangkok, the cheapest place to land in Thailand, costs about $484¹ on average. The calendar moves that number more than anything else: the typical round trip to Thailand is $472¹ in February and $800¹ in June. No airline flies nonstop between the two countries, so every itinerary has at least one connection, and the trip averages 23 hours 6 minutes¹.

Since June 20, 2026 every international ticket out of Thailand's six main airports also carries a 1,120-baht² passenger service charge, about $33.57³. Below: fares by Thai city, month and route, the taxes built into the ticket, and the official record of international aircraft movements (passenger and cargo) at Thailand's main airports: 444,944⁴ international landings and take-offs and 126.0 million⁴ passengers at the six airports in the year to September 2025.

The average fare to Thailand in 2026

How much is a flight to Bangkok?

A round trip from the US to Bangkok Suvarnabhumi averages $484¹, counting every US departure airport together; no period or cabin mix is given for this average. Suvarnabhumi is the cheapest airport to fly into in Thailand and the starting point for the domestic flights to the islands and the north.¹ The figure is an average of prices seen, not a guaranteed fare: from Los Angeles, the cheapest quarter of round trips to Thailand cost $1,577¹ or less, a reminder that the average hides a wide spread by departure city, season and cabin.

How much is a flight to Phuket?

Flying straight through to the islands or the north costs more. In the last five days, the cheapest round trips found from the US were $637¹ to Phuket with one stop and $631¹ to Chiang Mai with two stops. Ko Samui came in at $788¹ and Krabi at $909¹; for smaller airports such as Udon Thani ($1,153¹), Surat Thani ($1,161¹) and Trang ($1,237¹, three stops), the cheapest recent fare was more than twice the Bangkok average.¹ These are single low fares, not averages, so they sit next to the Bangkok figure rather than being compared with it to the dollar.

Flying from Bangkok to the islands and the north

Once in Bangkok, the domestic hop is cheap. Round trips from Suvarnabhumi average $82⁵⁶ to both Phuket and Krabi and $89⁷ to Chiang Mai over the past 12 months. Koh Samui is the exception at $251⁸, about 3.1³ times the Phuket fare for a shorter flight.

How much is a flight from Bangkok to Phuket?

The average round trip is $82⁵, and most fares fall between $65⁵ and $103⁵. Tuesday departures run about 7%⁵ below the average and Friday departures about 9%⁵ above it. September is the cheapest month at $62⁵ for the round trip, and the nonstop takes 1h 33m⁵.

For Chiang Mai, the average flight price from Bangkok to Chiang Mai in 2025 and 2026 so far is $89⁷ round trip, with the usual range between $75⁷ and $121⁷. The north has its cheapest month in September ($67⁷) as well, and the flight is the second-shortest of the four, after Koh Samui, 1h 22m⁷.

For the Andaman coast further south, the average flight price from Bangkok to Krabi in 2025 and 2026 so far is $82⁶, the same as Phuket, with the usual range between $67⁶ and $106⁶. Monday is the cheapest day to fly, about 4%⁶ below the average.

And how much is a flight from Bangkok to Koh Samui? The round trip averages $251⁸, with a usual range of $185⁸ to $312⁸; even the cheapest month, November, costs $187⁸. Day of the week hardly matters on this route: Tuesday is only 3%⁸ below the average and Saturday 1%⁸ above it.

How long the flight to Thailand takes

There are no nonstop flights from any US airport to Thailand, and the average flight time to Thailand is 23 hours 6 minutes¹ for a distance of 8,615 miles¹ (13,864 km³). The shortest trip starts in Honolulu: Honolulu to Bangkok Suvarnabhumi takes about 16 hours 30 minutes¹.

The domestic legs are short by comparison: no Bangkok route in the table below takes longer than 1h 33m⁵ in the air, and the longest, to Phuket, covers 419 miles⁵.

The cheapest time to fly to Thailand

Thailand's flight prices by month, cheapest to priciest, run from February, when the typical round trip is $472¹, to June at $800¹, with December at $705¹ close behind. June costs $328³ more than February for the same trip. These are median prices over the past 12 months, with the most extreme 0.1% of prices removed; only these three months are published for the country as a whole.

Day of the week matters too. Wednesday is the cheapest day to fly, with round trips as low as $874¹, while Friday departures average $1,136¹. Booking about four weeks before departure gives a below-average price and saves about 6%¹ against a last-minute booking; the very lowest prices of the past year came 21 weeks¹ ahead.

Traffic follows a different calendar. At Thailand's six main airports, international passenger numbers peaked in January 2025 at 7,877,718⁴ and bottomed out in June 2025 at 5,239,714⁴; the peak month was 1.50³ times the quietest. June was the quietest month at the airports in that year and is the priciest month in the fare data,^{1 4} but the two cover different 12-month periods, so the match is a pattern, not a measured link.

The airports also count international aircraft movements (passenger and cargo), each landing and each take-off once. The six airports recorded 43,617⁴ of them in January 2025 and 32,565⁴ in September 2025, the lowest month of the fiscal year; June had 32,749⁴. The airport statistics do not split passenger and cargo movements, so these counts include freighters and are not a count of passenger flights.

Taxes and fees inside a Thailand ticket

Part of every fare is fixed by governments and airports. On the Thai side, the passenger service charge for international departures from the six main airports rose from 730 baht² to 1,120 baht² for tickets issued from June 20, 2026, an increase of 53.4%³. At the latest exchange rate, 33.36 baht⁹ per dollar, that is $33.57³, up from $21.88³. The charge is collected in the ticket price, not at the airport, and domestic flights keep the 130-baht² charge.

On the American side, a round trip starting in the US pays the international departure and arrival taxes of $23.40¹⁰ each, the September 11 Security Fee of $5.60¹¹ once, on the leg that starts in the US, and three fees on the way home: customs ($7.39¹²), immigration ($7.00¹³, set in the statute) and agricultural inspection ($3.84¹⁴). Two of them change on October 1, 2026: the customs fee rises to $7.61¹⁵, and the agricultural inspection fee rises to $3.98¹⁴ for tickets bought from that date. Passenger Facility Charges are $4.50¹⁶ per boarding at a US airport. With no nonstop flight, a one-stop trip changes planes abroad, so it pays for one US boarding, the first; the legal cap of two boardings in each direction, $18.00³, applies only to trips with two US boardings in each direction.

With one connection each way the US items add up to $75.13³ today and $75.49³ from October 1, and with Thailand's departure charge the fixed part of a round trip comes to $108.70³, more than a fifth of the $484¹ Bangkok average.

The planned Thailand Travel Fee

A new entry fee is planned but not yet collected. Thailand is consulting on a flat 450-baht¹⁷ fee, about $13.49³, for every foreign visitor arriving by air, land or sea, with the public consultation running until September 28, 2026. After Cabinet approval and publication in the Royal Gazette, collection would start 180 days later, which puts the first air arrivals paying it in early to mid 2027 at the earliest. Transit passengers, crew and children under 2 would be exempt, and one payment would cover entries within 30 days and include travel insurance for that period.¹⁷

Thailand's airports

Six airports run by the national airport company carried 125,989,505⁴ passengers in the fiscal year from October 2024 to September 2025, 5.6%³ more than a year earlier and 88.8%³ of the fiscal 2019 level. International passengers made up 76,636,387⁴ of the total, up from 72,674,334⁴ a year earlier, and domestic passengers 49,353,118⁴, up from 46,618,887⁴. These counts include every arriving and departing passenger, Thai and foreign, on international and domestic flights.

Bangkok's two airports

Suvarnabhumi handled 62,663,405⁴ passengers in fiscal 2025, 2.00³ times the 31,337,658⁴ at Don Mueang, and together the two Bangkok airports carried 74.6%³ of all six airports' passengers. The difference is in the mix: 80.7%³ of Suvarnabhumi's passengers flew internationally, against 39.9%³ at Don Mueang, where domestic passengers outnumber international ones.

Suvarnabhumi alone carried 50,564,792⁴ international passengers, 66.0%³ of the six airports' total. Its busiest month was December 2024 with 4,964,337⁴ international passengers and its quietest September 2025 with 3,618,571⁴, a gap of 1.37³ times, narrower than at Phuket, where the busiest month had 2.22³ times the international passengers of the quietest.

The rest of the network

Phuket is the most international airport outside Bangkok: 10,716,920⁴ of its 17,342,485⁴ passengers flew abroad or arrived from abroad, 61.8%³. Its international traffic swung from 1,329,613⁴ passengers in January 2025 to 597,933⁴ in September 2025, the low point of the fiscal year.

Chiang Mai is mostly domestic, with 2,558,544⁴ international passengers out of 9,383,718⁴, and Hat Yai and Chiang Rai serve almost only domestic flights, Chiang Rai with just 13,950⁴ international passengers in the year.

Domestic flying follows the same calendar on a smaller scale. The six airports counted 4,748,479⁴ domestic passengers in January 2025, the busiest month, and 3,469,439⁴ in June 2025, the quietest, so the peak month had 1.37³ times the domestic passengers of the low one, a smaller swing than for international passengers.

International aircraft movements at Thailand's airports

The six airports handled 444,944⁴ international aircraft movements (passenger and cargo) in fiscal 2025, counting each landing and each take-off once, 6.9%³ more than the 416,187⁴ of fiscal 2024 and 90.4%³ of the 491,994¹⁸ of fiscal 2019. Suvarnabhumi had 277,231⁴ of them, 62.3%³.

Growth was faster outside Bangkok. International movements at Chiang Mai rose 14.0%³ to 18,090⁴ and at Phuket 8.3%³ to 57,790⁴, against 5.9%³ at Suvarnabhumi. Hat Yai grew from a small base, 2,131⁴ to 2,951⁴.

Many international passengers at Suvarnabhumi never leave the airport. In fiscal 2025 it counted 3,577,972⁴ international transfer passengers, who change planes there, 7.1%³ of its international traffic and 90.3%³ of all transfers at the six airports, plus 281,484⁴ transit passengers who stayed on board. At Phuket and Chiang Mai almost every international passenger started or ended the trip there.

The longer record shows how far the recovery has come. The six airports' international aircraft movements (passenger and cargo) climbed from 215,650¹⁹ in fiscal 2010 to the fiscal 2019 peak, fell to 67,018²⁰ in fiscal 2021 and are now back to 90.4%³ of the peak. Suvarnabhumi is at 94.9%³ of its fiscal 2019 count and Phuket at 91.1%³, while Don Mueang reached 83.6%³ and Chiang Mai 72.0%³. Don Mueang handled few international movements until fiscal 2013, when its count jumped from 2,507²¹ to 39,745²¹.

International passengers followed a similar path. The six airports counted 76,636,387⁴ international passengers in fiscal 2025, 91.2%³ of fiscal 2019's 84,049,315¹⁸, and Suvarnabhumi 50,564,792⁴, 96.0%³ of its own fiscal 2019 figure. Both yearly series break in fiscal 2020-2022 and have not returned to their old path, so they are shown as tables rather than drawn with a trend line or projected.

Counting domestic passengers too, the recovery is uneven. Measured against fiscal 2019, Suvarnabhumi was back to 96.8%³ of its traffic in fiscal 2025 and Phuket to 97.2%³, while Chiang Mai reached 82.9%³ and Don Mueang 76.4%³. Don Mueang's own history is the sharpest: it carried 2,717,413²¹ passengers in fiscal 2012 and 41,008,379¹⁸ in fiscal 2019. The lowest point for the six airports was fiscal 2021, with 20,010,564²⁰ passengers in all.

Mapped by region, the six airports show how concentrated air traffic is. The Central region, with both Bangkok airports, had 94,001,063³ passengers in fiscal 2025; the South, with Phuket and Hat Yai, 20,657,710³; the North, with Chiang Mai and Chiang Rai, 11,330,732³. The Northeast, East and West have none of the six airports, so the map leaves them blank.

What these numbers mean for your trip

For most American travelers the cheapest plan is two tickets: a long-haul round trip to Bangkok, averaging $484¹, and a domestic round trip onward, $82⁵⁶ to Phuket or Krabi and $89⁷ to Chiang Mai. The cheapest through fare found to Phuket in the last few days, $637¹, shows that a single ticket can compete, so it is worth pricing both ways. Koh Samui is different: at $251⁸ the domestic leg alone is more than half of the Bangkok average.

Timing matters more than any sale. A February departure has a typical fare of $472¹, $328³ less than June, and on the Phuket, Krabi and Chiang Mai routes from Bangkok, September brings the lowest domestic fares of the year.^{5 6 7} The fixed charges, about $108.70³ per round trip today with one connection each way, cannot be avoided, and the planned 450-baht¹⁷ entry fee would add about $13.49³ per person from 2027 if it is approved. Finally, plan for the time: 23 hours 6 minutes¹ on average from the US, with at least one change of plane.

How Thailand compares with nearby destinations

Thailand's figures are not measured quite the same way as its neighbors': for Japan, the Philippines and Vietnam, the country average of prices found in the last month is published, while for Thailand only the Bangkok airport average (period not stated) and the monthly medians are. With that caveat, a round trip to Japan averages $962²⁵, to the Philippines $755²⁶ and to Vietnam $725²⁷, all above Thailand's $484¹ Bangkok average and its $472¹ February median.

Conclusions

1. Bangkok is the cheap door. A round trip to Suvarnabhumi averages $484¹, and the domestic leg onward costs $82⁵ to $89⁷ for Phuket, Krabi or Chiang Mai.
2. Season sets the price. The typical fare runs from $472¹ in February to $800¹ in June.
3. Koh Samui costs a premium. At $251⁸, the Bangkok-Koh Samui round trip costs 3.1³ times the Phuket or Krabi fare.
4. The fixed charges went up. Thailand's departure charge is 1,120 baht² since June 20, 2026, and together with US taxes about $108.70³ of a one-stop round trip is government charges.
5. International air traffic is close to its peak. The six main airports handled 444,944⁴ international aircraft movements (passenger and cargo) in fiscal 2025, 90.4%³ of fiscal 2019.