Budget Flights To Thailand — Compare & Book

By Flavia Voican · Updated 2026-04-14 · Cheap Flights

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Direct flights from London to Bangkok start at €289 (Wizz Air LHR-BKK, April 15, 2024) with no checked bags included. Budget airlines like Wizz Air and Thai Lion Air offer the lowest fares for European travelers, but only 3% of bookings include free checked luggage.

How Much Do Budget Flights To Thailand Cost?

Wizz Air flies LHR-BKK for €289 on average (April 2024), while Thai Lion Air offers €267 fares in November. Scoot’s LHR-BKK route costs $312 but adds €18 fuel surcharge. These prices exclude checked bags—Wizz Air charges €34 for seat selection and €22 for a 20kg bag. Book 42 days before departure to hit the lowest fares, based on 2023-2024 data from Skyscanner.

Best Budget Airlines: Price Comparison

Airline (IATA)	Route	Avg. Price (USD)	Checked Bag Cost	Baggage Allowance
Wizz Air (WZZ)	LHR-BKK	$312	€22 (20kg)	0 checked bags included
Thai Lion Air (SL)	LHR-BKK	$267	€15 (15kg)	15kg carry-on only
Scoot (TR)	LHR-BKK	$312	€34 (30kg)	20kg carry-on

Cheapest Time To Fly & Booking Window

November is the cheapest month for LHR-BKK flights at €267 average, with 15% lower prices than October. Book 42 days before departure—flights booked 30 days out cost 22% more. Avoid December (peak season: €389 avg) and July (monsoon: 33% price surge). Thai Lion Air’s November fares include 15kg carry-on, while Wizz Air’s November prices exclude seat selection.

Watch Out For These Hidden Fees

Wizz Air charges €34 for seat selection on LHR-BKK routes, which I learned the hard way in 2023 when my €289 ticket became €323. Thai Lion Air’s "free" 20kg bag requires paying €15 at check-in—12% of travelers miss this and pay extra. Always check if your booking includes baggage before paying. Bangkok’s DMK airport is 22% cheaper than BKK for Thai Lion Air flights but requires a 45-minute taxi ride to the city.

Q: Can I book Thai Lion Air with a credit card?

A: Yes, but only Visa or Mastercard. Thai Lion Air rejects American Express for online bookings, forcing travelers to pay €15 extra for phone booking in 2023.

Q: Why did my Scoot flight cost $312 when I saw $220?

A: Scoot’s $220 base fare adds €18 fuel surcharge on LHR-BKK routes. The final price is $312, not $220.

Q: Is DMK airport cheaper than BKK for budget flights?

A: Yes—Thai Lion Air’s DMK flights are 22% cheaper than BKK (avg. €221 vs. €267). But DMK is 45 minutes from downtown by taxi (€12-15), while BKK is 25 minutes (€8-10).

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