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Cheap flights from Portland, Maine to Kathmandu from $1,549

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Portland, Maine to Kathmandu departing on 9/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from Portland, Maine to Kathmandu

Cheap round-trip flights

Enter your travel dates to find the best prices.
Qatar Airways Logo
3:30 pm - 9:50 am
PWM
-
KTM
32h 35m
2 stops
Qatar Airways Logo
6:00 pm - 12:17 pm
KTM
-
PWM
28h 02m
2 stops
$1,549Qatar Airways
Thu, Sep 3 - Mon, Sep 7
Qatar Airways Logo
3:30 pm - 9:50 am
PWM
-
KTM
32h 35m
2 stops
Qatar Airways Logo
11:05 am - 10:45 pm
KTM
-
PWM
45h 25m
2 stops
$1,552Qatar Airways
Thu, Sep 3 - Mon, Sep 7
Qatar Airways Logo
3:03 pm - 9:50 am
PWM
-
KTM
33h 02m
2 stops
Qatar Airways Logo
11:05 am - 12:17 pm
KTM
-
PWM
34h 57m
2 stops
$1,592Qatar Airways
Sat, Sep 12 - Wed, Sep 16
Multiple Airlines Logo
7:20 am - 4:30 pm
PWM
-
KTM
23h 25m
2 stops
Multiple Airlines Logo
6:45 am - 1:35 pm
KTM
-
PWM
40h 35m
2 stops
$1,978Multiple Airlines
Sat, May 16 - Tue, Jun 2
Qatar Airways Logo
6:00 am - 4:45 pm
PWM
-
KTM
25h 00m
2 stops
Qatar Airways Logo
11:05 am - 12:17 pm
KTM
-
PWM
34h 57m
2 stops
$2,186Qatar Airways
Sat, Sep 12 - Wed, Sep 16
Singapore Airlines Logo
2:40 pm - 9:30 pm
PWM
-
KTM
45h 05m
3 stops
Singapore Airlines Logo
10:50 pm - 11:52 pm
KTM
-
PWM
58h 47m
3 stops
$2,431Singapore Airlines
Thu, Sep 3 - Mon, Sep 7
Singapore Airlines Logo
2:40 pm - 9:30 pm
PWM
-
KTM
45h 05m
2 stops
Singapore Airlines Logo
10:50 pm - 11:52 pm
KTM
-
PWM
58h 47m
3 stops
$2,455Singapore Airlines
Thu, Sep 3 - Mon, Sep 7

Qatar Airways flights from Portland, Maine to Kathmandu

Our best Qatar Airways deals on Portland, Maine to Kathmandu flight tickets
Qatar Airways
Sep 3
PWM3:30 pmPortland
32h 35m
2 stops
KTM9:50 amKathmandu Tribhuvan
Sep 7
KTM6:00 pmKathmandu Tribhuvan
28h 02m
2 stops
PWM12:17 pmPortland
$1,549
Qatar Airways
Sep 3
PWM3:30 pmPortland
32h 35m
2 stops
KTM9:50 amKathmandu Tribhuvan
Sep 7
KTM11:05 amKathmandu Tribhuvan
45h 25m
2 stops
PWM10:45 pmPortland
$1,552
Qatar Airways
Sep 12
PWM3:03 pmPortland
33h 02m
2 stops
KTM9:50 amKathmandu Tribhuvan
Sep 16
KTM11:05 amKathmandu Tribhuvan
34h 57m
2 stops
PWM12:17 pmPortland
$1,592

Singapore Airlines flights from Portland, Maine to Kathmandu

Our best Singapore Airlines deals on Portland, Maine to Kathmandu flight tickets
Singapore Airlines
Sep 3
PWM2:40 pmPortland
45h 05m
3 stops
KTM9:30 pmKathmandu Tribhuvan
Sep 7
KTM10:50 pmKathmandu Tribhuvan
58h 47m
3 stops
PWM11:52 pmPortland
$2,431
Singapore Airlines
Sep 3
PWM2:40 pmPortland
45h 05m
2 stops
KTM9:30 pmKathmandu Tribhuvan
Sep 7
KTM10:50 pmKathmandu Tribhuvan
58h 47m
3 stops
PWM11:52 pmPortland
$2,455

momondo Fare Finder

 
Customize your flight search to find flights from Portland, Maine to Kathmandu that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated April 10, 2026.
Use the filters below to find and compare flights from Portland, Maine to Kathmandu that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandKathmandu

PWM - KTM

PWMKTM

Portland

Thu 9/3

3:30 pm-9:50 am

2 stops32h 35m

Kathmandu Tribhuvan

Mon 9/7

6:00 pm-12:17 pm

2 stops28h 02m

$1,549

PortlandKathmandu

PWM - KTM

PWMKTM

Portland

Thu 9/3

3:30 pm-9:50 am

2 stops32h 35m

Kathmandu Tribhuvan

Mon 9/7

11:05 am-10:45 pm

2 stops45h 25m

$1,552

PortlandKathmandu

PWM - KTM

PWMKTM

Portland

Sat 9/12

3:03 pm-9:50 am

2 stops33h 02m

Kathmandu Tribhuvan

Wed 9/16

11:05 am-12:17 pm

2 stops34h 57m

$1,592

PortlandKathmandu

PWM - KTM

PWMKTM

Portland

Sat 5/16

7:20 am-4:30 pm

2 stops23h 25m

Kathmandu Tribhuvan

Tue 6/2

6:45 am-1:35 pm

2 stops40h 35m

$1,978
Quickest round-trip

PortlandKathmandu

PWM - KTM

PWMKTM

Portland

Sat 9/12

6:00 am-4:45 pm

2 stops25h 00m

Kathmandu Tribhuvan

Wed 9/16

11:05 am-12:17 pm

2 stops34h 57m

$2,186

PortlandKathmandu

PWM - KTM

PWMKTM

Portland

Thu 9/3

2:40 pm-9:30 pm

3 stops45h 05m

Kathmandu Tribhuvan

Mon 9/7

10:50 pm-11:52 pm

3 stops58h 47m

$2,431

PortlandKathmandu

PWM - KTM

PWMKTM

Portland

Thu 9/3

2:40 pm-9:30 pm

2 stops45h 05m

Kathmandu Tribhuvan

Mon 9/7

10:50 pm-11:52 pm

3 stops58h 47m

$2,455

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Kathmandu from

How to get the cheapest flight ticket from Portland, Maine to Kathmandu

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What airlines fly to Kathmandu?

Qatar Airways, Emirates and Cathay Pacific are the top three most popular airlines that fly to Kathmandu from Portland, Maine according to our data. Qatar Airways is the first choice among our users, with 49% of people opting to fly with this airline when traveling to Kathmandu. Keep in mind that there are 7 different airlines that fly to Kathmandu on a routine basis, so you have a few additional options to choose from.

When to book flights from Portland, Maine to Kathmandu

Are you open to changing your travel dates? Check out the ideal times to fly from Portland, Maine to Kathmandu according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Portland, Maine to Kathmandu (PWM to KTM) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland, Maine to Kathmandu

Fastest flight time

33h 02m

Direct flights

None
The fastest flight from Portland, Maine to Kathmandu takes 33h 02m
There are no direct flights from Portland, Maine to Kathmandu. There are no popular flight routes from Portland, Maine to Kathmandu.
Search flight deals

Frequently asked questions about flying from Portland, Maine to Kathmandu

  • How far is Portland to Kathmandu Tribhuvan by plane?

    There are 7262.9 mi between Portland and Kathmandu Tribhuvan. 33h 02m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Portland Airport to Kathmandu Tribhuvan Airport?

    Prices for flights from Portland Airport to Kathmandu Tribhuvan Airport refresh daily.

  • How old do you have to be to fly from Portland Airport to Kathmandu Tribhuvan Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to Kathmandu Tribhuvan Airport.

  • What documentation or ID do you need to fly to Kathmandu Tribhuvan Airport?

    The necessary travel and health documents for your Kathmandu Tribhuvan Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Traveling to a place near Kathmandu?

Book flights to Kathmandu if you plan to visit one of these locations
Nagarkot

Why use momondo?

Why should I use momondo to find a flight deal from Portland to Kathmandu?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Portland to Kathmandu. momondo saves you time and could save you money on your trip.

Can I find flights from Portland to Kathmandu with flexible booking policies on momondo?

Yes. All flights to Kathmandu from Portland on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Portland to Kathmandu?

Once you have performed a search for Portland to Kathmandu flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Portland to Kathmandu right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Kathmandu, momondo offers a useful price alert feature which will track prices for flights to Kathmandu from Portland and alert you when they change.

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Airlines are sorted and displayed according to clicks in the past 7 days on momondo
Qatar Airways
Emirates
Cathay Pacific
IndiGo
Turkish Airlines
SWISS
Air India