$627 Cheap Flights from Houston (IAH) to Kathmandu (KTM)

View $627 flight on Tue, Feb 10, 2026Opens in a new window

Popular airlines from George Bush Intercontinental Airport (IAH) to Tribhuvan Intl. Airport (KTM)

Cheap Flights from Houston to Kathmandu (IAH-KTM)

Prices were available within the past 7 days and start at $627 for one-way flights and $1,133 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Turkish Airlines
Fri, Feb 6 - Wed, Feb 18
IAH
Houston
KTM
Kathmandu
$1,133 Roundtrip, found 5 hours ago
$1,133
Roundtrip
found 5 hours ago
Select Turkish Airlines flight, departing Fri, Feb 6 from Houston to Kathmandu, returning Wed, Feb 18, priced at $1,133 found 5 hours ago
Turkish Airlines
Sun, Mar 8 - Tue, Mar 24
IAH
Houston
KTM
Kathmandu
$1,135 Roundtrip, found 3 days ago
$1,135
Roundtrip
found 3 days ago
Select Turkish Airlines flight, departing Sun, Mar 8 from Houston to Kathmandu, returning Tue, Mar 24, priced at $1,135 found 3 days ago
Turkish Airlines
Sat, Jan 10 - Tue, Feb 10
IAH
Houston
KTM
Kathmandu
$1,145 Roundtrip, just found
$1,145
Roundtrip
just found
Select Turkish Airlines flight, departing Sat, Jan 10 from Houston to Kathmandu, returning Tue, Feb 10, priced at $1,145 just found
Turkish Airlines
Fri, Jan 2 - Sat, Feb 7
IAH
Houston
KTM
Kathmandu
$1,145 Roundtrip, found 3 days ago
$1,145
Roundtrip
found 3 days ago
Select Turkish Airlines flight, departing Fri, Jan 2 from Houston to Kathmandu, returning Sat, Feb 7, priced at $1,145 found 3 days ago
United
Wed, Feb 18 - Wed, Mar 18
IAH
Houston
KTM
Kathmandu
$1,170 Roundtrip, found 4 days ago
$1,170
Roundtrip
found 4 days ago
Select United flight, departing Wed, Feb 18 from Houston to Kathmandu, returning Wed, Mar 18, priced at $1,170 found 4 days ago
Turkish Airlines
Mon, Feb 9 - Wed, Feb 18
IAH
Houston
KTM
Kathmandu
$1,208 Roundtrip, found 5 hours ago
$1,208
Roundtrip
found 5 hours ago
Select Turkish Airlines flight, departing Mon, Feb 9 from Houston to Kathmandu, returning Wed, Feb 18, priced at $1,208 found 5 hours ago
Cathay Pacific
Mon, Feb 16 - Mon, Mar 16
IAH
Houston
KTM
Kathmandu
$1,218 Roundtrip, found 1 hour ago
$1,218
Roundtrip
found 1 hour ago
Select Cathay Pacific flight, departing Mon, Feb 16 from Houston to Kathmandu, returning Mon, Mar 16, priced at $1,218 found 1 hour ago
Cathay Pacific
Mon, Mar 9 - Mon, Mar 23
IAH
Houston
KTM
Kathmandu
$1,218 Roundtrip, found 3 days ago
$1,218
Roundtrip
found 3 days ago
Select Cathay Pacific flight, departing Mon, Mar 9 from Houston to Kathmandu, returning Mon, Mar 23, priced at $1,218 found 3 days ago
Alaska Airlines
Mon, Mar 23 - Mon, Mar 30
IAH
Houston
KTM
Kathmandu
$1,293 Roundtrip, found 1 day ago
$1,293
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Mon, Mar 23 from Houston to Kathmandu, returning Mon, Mar 30, priced at $1,293 found 1 day ago
Emirates
Sun, Jan 4 - Wed, Feb 4
IAH
Houston
KTM
Kathmandu
$1,724 Roundtrip, just found
$1,724
Roundtrip
just found
Select Emirates flight, departing Sun, Jan 4 from Houston to Kathmandu, returning Wed, Feb 4, priced at $1,724 just found

Find the cheapest month to fly from Houston (IAH) to Kathmandu (KTM)

September is typically the cheapest month to fly

From $1,265 - $1,833 per traveler.

Alternative airports near Kathmandu

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Tribhuvan Intl. KTM. Cheapest and Closest option available. Average driving time to city center is 6 minutes. Flights from $1,290
KTM
Tribhuvan Intl.
CheapestClosest
Average driving time to city center6 min
Flights from $1,290

Frequently asked questions

How much does a flight from George Bush Intercontinental Airport (IAH) to Tribhuvan Intl. Airport (KTM) cost?
Snag a cheap one-way flight from $627 or cheap return flight from $1,133 from George Bush Intercontinental Airport (IAH) to Tribhuvan Intl. Airport (KTM) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from George Bush Intercontinental Airport (IAH) to Tribhuvan Intl. Airport (KTM)?
The cheapest month to fly from IAH to KTM is February, when there's less demand. Off-peak season is generally when you'll find lower airfares between these airports.
What is the cheapest airline that flies from George Bush Intercontinental Airport (IAH) to Tribhuvan Intl. Airport (KTM)?
Expedia's filter tool lets you easily compare airlines, flight times and baggage options all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest IAH to KTM flight.
How many flights per day from George Bush Intercontinental Airport (IAH) to Tribhuvan Intl. Airport (KTM)?
There are no daily nonstop flights departing from George Bush Intercontinental Airport (IAH) to Tribhuvan Intl. Airport (KTM). But you can choose flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be on your way in no time.
What day of the week has the most flights from IAH to KTM?
You'll generally find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from George Bush Intercontinental Airport (IAH) to Tribhuvan Intl. Airport (KTM)?
To avoid possible delays on the George Bush Intercontinental Airport (IAH) to Tribhuvan Intl. Airport (KTM) route, fly before 3 PM. Later departures are 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from George Bush Intercontinental Airport (IAH) to Tribhuvan Intl. Airport (KTM) last-minute?
Booking your flight from IAH to KTM right before your journey is typically more expensive. But if you're flexible with your departure times and dates, you could grab a cheap last-minute fare.
Is it cheaper to book an IAH to KTM flight and hotel package?
Compared with arranging hotels and flights separately, booking an IAH to KTM flight and hotel package with Expedia could lead to significant savings. Better still, having everything in one easy place will take the hassle out of travel planning. Simply secure your flights and select from our wide range of hotels, then customize your trip with extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from George Bush Intercontinental Airport (IAH) to Tribhuvan Intl. Airport (KTM)?
Typically, you can cancel or modify your IAH to KTM flight. However, additional fees may apply, especially if you booked more than 24 hours ago. Double-check your itinerary for the airline's fees and policies on flight changes, or if you'd like further information, visit our Customer Service portal.

Travel information

Origin airport
George Bush Intercontinental
Destination airport
Tribhuvan Intl.
Airlines serving
Cathay Pacific, Emirates, Etihad Airways, KLM, Korean Air, Malaysia Airlines, Qatar Airways, SriLankan Airlines, Turkish Airlines
Roundtrip price
$1,133
Distance
8450 mi

Book with confidence

Houston to Kathmandu Flights

The cheapest times to fly from Houston to Kathmandu

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Houston to Kathmandu are during the month of February. You can find some of the cheapest flights from Houston to Kathmandu with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Houston to Kathmandu

Sunday is one of the best days to book for cheap flights from Houston to Kathmandu: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Houston to Kathmandu

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Houston to Kathmandu in 2025. You can also book with separate airlines for your outbound and return journeys, from $627 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Houston to Kathmandu flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Houston to Kathmandu airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Houston to Kathmandu Flights

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*Available to One Key members.