Thai Airways International is Thailand's full-service flag carrier and a Star Alliance founder, based at Bangkok Suvarnabhumi. IndiGo is India's largest low-cost airline, based around Delhi. Travellers compare them mainly on India to Bangkok.
Thai is the better fit if you want a full-service flight with a meal, a business class and Star Alliance connections beyond Bangkok to Europe, Asia and Oceania. IndiGo suits travellers who want the lowest fare and are happy to pay for food, seats and bags separately. For short hops between India and Bangkok the cheaper fare often decides it. For long journeys, connections or business class, Thai is the stronger option.
Thai runs everything through Bangkok Suvarnabhumi and, as of January 2026, served 51 international and 9 domestic destinations in 29 countries, concentrated on Europe, Asia and Oceania. IndiGo's main hub is Delhi, with bases at Mumbai, Chennai, Kochi, Bengaluru, Kolkata and Hyderabad, and a mid-2026 analysis cites 141 destinations. On India to Bangkok, IndiGo flies direct from cities including Delhi, Mumbai, Chennai and Kochi, and Thai sells Bangkok fares from Delhi, Mumbai, Bengaluru, Chennai, Hyderabad and Kolkata.
Thai offers Royal Silk (business), Premium Economy and Economy, depending on the aircraft. Its fleet is being streamlined to four types, with a cabin overhaul planned for 2027, so seats will change over time. IndiGo is almost entirely economy. Its IndiGoStretch business product, introduced in November 2024, is available only on selected flights and includes complimentary meals and advance seat selection. IndiGo's economy has no seatback screens, so bring your own entertainment.
Thai's official allowance is one cabin bag of up to 7 kg. For tickets issued from late 2025 for travel from 2 March 2026, Economy Saver and Standard include 1 x 23 kg checked, and Royal Silk includes 2 x 32 kg. Older tickets keep the weight-based allowance. IndiGo's low fares are unbundled: pre-assigned seats, priority check-in and extra baggage are paid add-ons. Compare the total price including bags and seat, not just the headline fare, and check each airline's site for your fare.
Thai serves meals on international flights, with Thai and international dishes that vary by route, and you can pre-select up to 72 hours before departure. On IndiGo, economy passengers buy food on board, while IndiGoStretch passengers get complimentary meals. Entertainment on IndiGo is limited to streaming to your own device, as there are no seatback screens in economy. On a short India to Bangkok flight, a meal is included on Thai but is an extra on IndiGo economy.
Cirium reported 79.29% on-time arrivals for Thai in June 2025. IndiGo's December 2025 scheduling crisis led to thousands of cancellations. This was an operational disruption rather than a safety event. Chief executive Pieter Elbers resigned in March 2026 and Willie Walsh was named as his successor. Check current schedules and the airline's disruption policy before booking, especially for tight connections. Thai tickets can connect you onward within Star Alliance.
Thai belongs to Star Alliance and runs Royal Orchid Plus, with Royal Orchid and Royal Silk lounges. IndiGo has no alliance and runs BluChip, though it has codeshares, including AEGEAN, announced in September 2025. Both are expanding long-haul: Thai has Boeing 787s on order and relies on the A350-900, 777-300ER and 787 family, while IndiGo took its first A321XLR in January 2026, wet-leases widebodies and has ordered 60 Airbus A350-900s, with deliveries expected from 2027.
Thai is a full-service airline with meals, business class and Star Alliance links, so it is better for comfort and onward connections. IndiGo is usually cheaper and suits travellers who want a basic seat for a short flight.
Yes. IndiGo flies direct from several Indian cities, including Delhi, Mumbai, Chennai and Kochi, to Bangkok Suvarnabhumi. Thai also sells fares from Delhi, Mumbai, Bengaluru, Chennai, Hyderabad and Kolkata to Bangkok.
Thai serves meals on international flights. For tickets issued from late 2025 for travel from 2 March 2026, Economy Saver and Standard include 1 x 23 kg checked. IndiGo economy charges for food, and extra baggage is a paid option, so check your fare on its site.
Thai Airways International is the flag carrier of Thailand. According to Wikipedia, it was founded in 1960 as a joint venture with Scandinavian Airlines and began operating in its current form in 1988 after merging with Thai Airways Company. The Ministry of Finance holds 42.94% of the shares, and the airline is listed on the Stock Exchange of Thailand. Its headquarters are in Chatuchak, Bangkok. Thai is a founding member of Star Alliance. Its regional subsidiary Thai Smile was merged back into the mainline carrier from 2023.
The main hub is Bangkok Suvarnabhumi Airport. As of January 2026 the airline served 51 international and 9 domestic destinations in 29 countries, with a network focused on Europe, Asia and Oceania. A return to North America is under discussion, according to Aviation A2Z (July 2026).
Wikipedia lists a fleet of 80 aircraft as of January 2026, with a large order book (see the fleet page). In July 2026 Aviation A2Z reported a Boeing 787 fleet of 45 aircraft, including those on order. TTG Asia (25 September 2026) reports that long-haul flying will rely on the Airbus A350-900, Boeing 777-300ER and Boeing 787 family as older wide-bodies retire. It also reports that the Airbus A321neo fleet will grow from nine to 15 by the end of 2026, with a target of 32. The fleet is to be streamlined to four types, with a cabin overhaul planned for 2027.
IndiGo is an Indian low-cost airline. According to Wikipedia, it was founded in 2005 by Rahul Bhatia of InterGlobe Enterprises and Rakesh Gangwal, and began flying on 4 August 2006. It is headquartered in Gurgaon, Haryana, is listed on the Indian stock exchanges, and is not a member of an airline alliance. It became India's largest carrier by passenger share in December 2012. In March 2026 chief executive Pieter Elbers resigned after the December 2025 scheduling crisis, and Willie Walsh was named as the incoming CEO.
Delhi is the main hub. Operating bases include Mumbai, Chennai, Kochi, Bengaluru, Kolkata and Hyderabad. Wikipedia lists 128 destinations; a mid-2026 analysis cites 141 destinations, including 45 international cities, and more than 2,200 daily flights. IndiGo has codeshare and interline partnerships, including a codeshare with AEGEAN announced in September 2025, with A321XLR flights between India and Greece planned for 2026.
As of August 2025, Wikipedia lists 434 aircraft, mostly Airbus A320 family jets plus ATR 72-600 turboprops. IndiGo also wet-leases two Boeing 777s from Turkish Airlines and has wet-leased Boeing 787s from Norse Atlantic. The analysis report cites about 440 aircraft in mid-2026, the first A321XLR delivery in January 2026, and an order for 60 Airbus A350-900s, with deliveries expected from 2027.

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