Find Cheap Flights from Denver International to Ulan Bator Buyant Uhaa (DEN - ULN)

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Good to Know

Average Price:
$1475
(avg. price over the last 2 weeks)
Good Deal:
$1133
or less (round trip)

When to Book Flights from Denver International to Ulan Bator Buyant Uhaa

Flight prices as travel date approaches
-1 day
-2 days

Top tips for Finding a Cheap Flight

Looking for a cheap flight? 25% of our users found flights on this route for $1133 or less.
The cheapest flight from Denver International to Ulan Bator Buyant Uhaa was found 48 days before departure, on average.
Book at least 1 week before departure in order to get a below-average price.
Morning departure is around 13% more expensive than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for Booking Denver International to Ulan Bator Buyant Uhaa Flights

How long does a flight from Denver International to Ulan Bator Buyant Uhaa take?
An average nonstop flight takes 22h 54m, covering a distance of 6077 miles.
Which airlines provide the cheapest flights from Denver International to Ulan Bator Buyant Uhaa?
In the past 3 days, the cheapest round-trip tickets were found on Air China ($1075), Multiple Airlines ($1250) and Korean Air ($1488).
Do I need a passport to fly between Denver International and Ulan Bator Buyant Uhaa?
Yes.

Book cheap flights from Denver International to Ulan Bator Buyant Uhaa (round-trip)

Airports
Origin
Denver
$1075
only
$1075
Destination
Ulan Bator
$1075
only
$1075
Sat, May 5
DEN
ULN
25h 55m
Sun, May 13
ULN
DEN
50h 01m
$1075
Trip: 9 days
6.4GoodShow reviews
Overall 6.4 Good
Based on 3953 reviews
Overall
6.5
Boarding
6.7
Comfort
6.4
Crew
6.9
Entertainment
6.0
Food
6.0
PEK
FRA
Excellent 10.0

Everything. Air China comfort and service is great. I travel a lot to China and Air China is my first choice.

PEK
IAD
Excellent 10.0

Level of Service and the food.

IAD
PEK
Excellent 10.0

Level of Service

DEL
PEK
Good 7.3

overall it was good; crew was excellent, kept the plane, specially toilet clean throughout.

food selection for vegetarians better movie selection; english in TV documentaries.

PEK
SFO
Excellent 10.0

The flight attendants where excellent.

n/a

Tue, May 22
DEN
ULN
37h 15m
Sat, Jun 9
ULN
DEN
41h 35m
$1250
Trip: 19 days
Overall 0.0 Poor
Based on 0 reviews
Sat, May 5
DEN
ULN
24h 45m
Sun, May 13
ULN
DEN
31h 52m
$1488
Trip: 9 days
8.8ExcellentShow reviews
Overall 8.8 Excellent
Based on 3805 reviews
Overall
8.9
Boarding
8.9
Comfort
8.7
Crew
9.1
Entertainment
8.7
Food
8.5
ICN
SEA
Excellent 10.0

Good food!

I dont know

BGR
SEL
Excellent 10.0

Everyone was very nice.

The food was a little odd but that might just have been Korean food.

ICN
HAN
Excellent 8.6

Friendly service

Didn't dislike anything

CHS
JFK
Excellent 8.0

JFK
ICN
Excellent 8.3

On both of my long haul flights I had very nice, new planes to fly on which were very clean. Staff was incredibly friendly and accommodating despite having a huge number of people to attend to. Food was good when I ate it. Seats reclined very nicely and there was the most room I've had on a flight ever. Still cramped, but you take what you can get! Would definitely fly again.

2 complaints I would pose. 1. If we're flying on a super long flight overnight, do you have to turn on every light in the pane to serve food? Can we not keep it kind of dim while literally everyone is trying to sleep? Also, why are you serving a meal at 3AM?! I know we took off 2 hours ago and people may want food before we get into the bulk of the trip, but it's 3AM! Everyone just wants to sleep and now the lights are on and you're offering me a full meal?! Believe me, it's great that you're trying to keep me fed, but come on, we've got 12 hours of flight left to go! 2. The movies offered were really sub par. The "new releases' only had a handful of movies I'd even heard of before and only like 3 I even cared to watch. The "movie classics" were the same way. Gotta step up your movie options when I'm trapped in your plane for 14 hours.

Sun, Jun 17
DEN
ULN
33h 35m
Sat, Jul 21
ULN
DEN
48h 19m
$2101
Trip: 35 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 18087 reviews
Overall
8.0
Boarding
7.9
Comfort
7.8
Crew
8.3
Entertainment
8.1
Food
7.9
IST
SOF
Excellent 9.6

Everything was perfect!!! I have no remarks!!!

MIA
IST
Excellent 10.0

Great service and brand new plane!

IST
IAD
Good 7.6

The food was good and the staff were nice

The seats are very small and extremely discomfort for overseas flight

SFO
IST
Excellent 9.6

The service, food,seats,crew,hot towel, slippers & more.

Nothing. Everything was great!

LAX
IST
Mediocre 2.0

Nothing

Nothing

Fri, May 4
DEN
ULN
38h 50m
Sat, May 19
ULN
DEN
23h 45m
$1148
Trip: 16 days
6.4GoodShow reviews
Overall 6.4 Good
Based on 3953 reviews
Overall
6.5
Boarding
6.7
Comfort
6.4
Crew
6.9
Entertainment
6.0
Food
6.0
PEK
IAH
Excellent 8.0

Crews were polite and helpful

Food was edible but horrible! It makes me doubt this country’s 5000-year history of cuisines.

BOM
PEK
Mediocre 2.0

The aircraft crew was nice

The ground staff in Mumbai airport was rude and disrespectful. These people need special training on communication. Very dissapointed, never taking air China again.

PEK
FRA
Excellent 10.0

Everything. Air China comfort and service is great. I travel a lot to China and Air China is my first choice.

PEK
CKG
Mediocre 2.0

I had to stay at Beijing for overnight and took a flight the next day.

PEK
SFO
Excellent 10.0

The flight attendants where excellent.

n/a

Wed, Jun 13
DEN
ULN
30h 45m
Tue, Jul 17
ULN
DEN
29h 12m
$2354
Trip: 35 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 4071 reviews
Overall
8.1
Boarding
8.1
Comfort
7.9
Crew
8.4
Entertainment
8.2
Food
7.7
JFK
HKG
Excellent 8.0

Unable to do online check in, have to waste time to line up in the airport. Not all people need visa to enter a country, this is rediculous that I couldn’t proceed to check in online because I do not have visa to enter my own country. Rediculous

HKG
SFO
Mediocre 2.0

It was a long flight, and customer service not good.

JFK
HKG
Mediocre 3.3

Nathing

DEL
HKG
Mediocre 2.0

My mother has health issues. She is diabetic, and asked for Juice. Air hostess told her they don't have the permission to serve anything for certain period of time. They did not give her Juice, and she was not feeling well. I'll not choose this airline again. Food was ok too

HKG
BOS
Good 6.6

Seats had good headrests with adjustable "wings" to cradle head while sleeping. USB plug below entertainment screen.

A good half the plane was first class and business class. (This was a 15 hour Hong King to Boston flight.) They handed out a fancy menu with 4 entrees but by the time they got to economy only pasta was left. We did at least get a small bottle of water; on our outgoing flight they doled it out in meager glasses. When boarding in Hong Kong we had to go through an additional security check between the gate and the plane (that was a first...) and had our water bottles confiscated. So we were reliant on what they would give us on the plane. Seats were tight, unlike some airlines that give you a little extra room. Wouldn't fly again unless their price was a real bargain.

Sat, Mar 31
DEN
ULN
22h 54m
Sun, Apr 8
ULN
DEN
37h 32m
$1298
Trip: 9 days
Overall 0.0 Poor
Based on 0 reviews
Fri, Mar 30
DEN
ULN
43h 04m
Sun, Apr 8
ULN
DEN
37h 32m
$1359
Trip: 10 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Feb 27
DEN
ULN
39h 05m
Tue, Mar 6
ULN
DEN
23h 03m
$1419
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Sat, Jun 23
DEN
ULN
26h 40m
Sun, Jul 1
ULN
DEN
43h 27m
$1518
Trip: 9 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Jun 19
DEN
ULN
33h 30m
Tue, Jul 17
ULN
DEN
48h 19m
$2101
Trip: 29 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 18087 reviews
Overall
8.0
Boarding
7.9
Comfort
7.8
Crew
8.3
Entertainment
8.1
Food
7.9
TIA
IST
Good 7.3

Boarding, on time

Food can be better. Steward never brought the blanket and it was cold. Entertainment is not good and game did not work.

IST
SFO
Good 7.3

The flight was on time, the food was good. Nice selection for onboard entertainment. The plane was very clean.

1. The boarding process at Istanbul airport was horrible. No one could speak or understand english. My father was on a wheelchair and he was the last one to be boarded on the plane! There was so much confusion - some people wanted me to go separately from him, others wanted him to walk down the stairs on his own, etc. etc. There were hardly any announcements for people with special needs. Generally they are allowed to board first as they need more time to settle. I could barely find overhead bin space for his stuff. 2. There were several remote controls broken on the plane. A lot of people had to suffer through a non working entertainment screen. 3. One of the hostess was hardly listening to anything I had to say. She seemed to be in so much of a hurry and had a very bad attitude.

JFK
IST
Excellent 10.0

Food, service, entertainment, cleanness of the plane

Too many announcements in the beginning of the flight.

IST
IAD
Good 7.6

The food was good and the staff were nice

The seats are very small and extremely discomfort for overseas flight

IST
OTP
Excellent 10.0

i like because can interline from qatar airways and baggage through as well. so i do not need to check in again.

Thu, Jun 14
DEN
ULN
23h 45m
Sun, Jul 15
ULN
DEN
37h 49m
$2287
Trip: 32 days
8.8ExcellentShow reviews
Overall 8.8 Excellent
Based on 3805 reviews
Overall
8.9
Boarding
8.9
Comfort
8.7
Crew
9.1
Entertainment
8.7
Food
8.5
SFO
ICN
Excellent 8.0

Staff was very nice

Very small seats

ICN
SEA
Excellent 10.0

Good food!

I dont know

ICN
JFK
Excellent 10.0

flight crew service and timeliness of the flight, email update on flight status

baggage claim was very slow took about 45mins to receive bags after arrival to JFK

TAO
ICN
Excellent 9.6

I love Korean Air. Can't say enough good things about this airline. I fly Korean Air whenever I can.

Simple meal but a short flight.

ICN
BKK
Excellent 8.0

The plane was way too hot! Being trapped in a stuffy plane for 5 hours and sweating was the worst!

Sun, Jul 8
DEN
ULN
37h 15m
Tue, Jul 31
ULN
DEN
39h 30m
$1599
Trip: 24 days
Overall 0.0 Poor
Based on 0 reviews
Fri, Jun 15
DEN
ULN
30h 45m
Tue, Jul 17
ULN
DEN
29h 12m
$2354
Trip: 33 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 4071 reviews
Overall
8.1
Boarding
8.1
Comfort
7.9
Crew
8.4
Entertainment
8.2
Food
7.7
HKG
LAX
Mediocre 2.0

the person in front of me just laid down his seat for almost entire flight which made me to have no rooms people are switching seats without letting flight attendants to know. This is not fair for other customers

JFK
HKG
Mediocre 3.3

Nathing

LAX
HKG
Mediocre 2.6

Nothing really. I am not gonna fly Cathay next time. Would like to have a wifi.

The FA, no WI-Fi for a 15 hr trip.

JFK
HKG
Excellent 8.0

Unable to do online check in, have to waste time to line up in the airport. Not all people need visa to enter a country, this is rediculous that I couldn’t proceed to check in online because I do not have visa to enter my own country. Rediculous

HKG
MNL
Excellent 10.0

None

Wed, Jun 13
DEN
ULN
48h 45m
Mon, Jul 16
ULN
DEN
37h 49m
$2291
Trip: 34 days
8.8ExcellentShow reviews
Overall 8.8 Excellent
Based on 3805 reviews
Overall
8.9
Boarding
8.9
Comfort
8.7
Crew
9.1
Entertainment
8.7
Food
8.5
ICN
JFK
Excellent 10.0

flight crew service and timeliness of the flight, email update on flight status

baggage claim was very slow took about 45mins to receive bags after arrival to JFK

ICN
SEA
Excellent 10.0

Good food!

I dont know

ICN
HKT
Excellent 9.0

A long delay for weather, adding 2hrs to our trip. If traveling in the winter be prepared for delays.

ICN
SFO
Good 7.6

Entertainment options are out of date which is painful for long flights

CHS
JFK
Excellent 8.0

Thu, Jun 14
DEN
ULN
33h 35m
Sat, Jul 21
ULN
DEN
48h 19m
$2301
Trip: 38 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 18087 reviews
Overall
8.0
Boarding
7.9
Comfort
7.8
Crew
8.3
Entertainment
8.1
Food
7.9
ISB
IST
Excellent 9.3

Comfortable seats and friendly crew

Food could be better esp snacks

JFK
IST
Excellent 8.3

I did like the food, very nice stuff.

I order some to help to find my gate for a another international flight,but no one came. For such long flight, definitely need to have sits with more space. Very hard to flight in such tight space

IST
OTP
Excellent 10.0

i like because can interline from qatar airways and baggage through as well. so i do not need to check in again.

SFO
IST
Excellent 9.6

The service, food,seats,crew,hot towel, slippers & more.

Nothing. Everything was great!

KBP
IST
Excellent 10.0

The best trip! Thk"s! Good luck,T.Airlines!

Sat, Jun 16
DEN
ULN
37h 10m
Fri, Jul 20
ULN
DEN
29h 12m
$2354
Trip: 35 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 4071 reviews
Overall
8.1
Boarding
8.1
Comfort
7.9
Crew
8.4
Entertainment
8.2
Food
7.7
JFK
HKG
Excellent 8.0

Unable to do online check in, have to waste time to line up in the airport. Not all people need visa to enter a country, this is rediculous that I couldn’t proceed to check in online because I do not have visa to enter my own country. Rediculous

HKG
BOS
Good 6.6

Seats had good headrests with adjustable "wings" to cradle head while sleeping. USB plug below entertainment screen.

A good half the plane was first class and business class. (This was a 15 hour Hong King to Boston flight.) They handed out a fancy menu with 4 entrees but by the time they got to economy only pasta was left. We did at least get a small bottle of water; on our outgoing flight they doled it out in meager glasses. When boarding in Hong Kong we had to go through an additional security check between the gate and the plane (that was a first...) and had our water bottles confiscated. So we were reliant on what they would give us on the plane. Seats were tight, unlike some airlines that give you a little extra room. Wouldn't fly again unless their price was a real bargain.

JFK
HKG
Mediocre 3.3

Nathing

LAX
HKG
Mediocre 2.6

Nothing really. I am not gonna fly Cathay next time. Would like to have a wifi.

The FA, no WI-Fi for a 15 hr trip.

HKG
KIX
Okay 5.0

Good entertainment choices, but the system itself was awkward and slow to respond.

The 777 was tired. Tray tables weren’t clean and it was fitted with seats that did not recline. Most uncomfortable!

Sat, Jun 16
DEN
ULN
45h 30m
Wed, Jul 18
ULN
DEN
40h 17m
$1666
Trip: 33 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Jun 19
DEN
ULN
23h 45m
Sun, Jul 15
ULN
DEN
37h 49m
$2337
Trip: 27 days
8.8ExcellentShow reviews
Overall 8.8 Excellent
Based on 3805 reviews
Overall
8.9
Boarding
8.9
Comfort
8.7
Crew
9.1
Entertainment
8.7
Food
8.5
ICN
BKK
Excellent 8.0

The plane was way too hot! Being trapped in a stuffy plane for 5 hours and sweating was the worst!

ICN
SFO
Good 7.6

Entertainment options are out of date which is painful for long flights

ICN
HKT
Excellent 9.0

A long delay for weather, adding 2hrs to our trip. If traveling in the winter be prepared for delays.

SFO
ICN
Excellent 8.0

Staff was very nice

Very small seats

JFK
ICN
Excellent 8.3

On both of my long haul flights I had very nice, new planes to fly on which were very clean. Staff was incredibly friendly and accommodating despite having a huge number of people to attend to. Food was good when I ate it. Seats reclined very nicely and there was the most room I've had on a flight ever. Still cramped, but you take what you can get! Would definitely fly again.

2 complaints I would pose. 1. If we're flying on a super long flight overnight, do you have to turn on every light in the pane to serve food? Can we not keep it kind of dim while literally everyone is trying to sleep? Also, why are you serving a meal at 3AM?! I know we took off 2 hours ago and people may want food before we get into the bulk of the trip, but it's 3AM! Everyone just wants to sleep and now the lights are on and you're offering me a full meal?! Believe me, it's great that you're trying to keep me fed, but come on, we've got 12 hours of flight left to go! 2. The movies offered were really sub par. The "new releases' only had a handful of movies I'd even heard of before and only like 3 I even cared to watch. The "movie classics" were the same way. Gotta step up your movie options when I'm trapped in your plane for 14 hours.

Sun, Jun 17
DEN
ULN
30h 45m
Fri, Jul 20
ULN
DEN
26h 06m
$2354
Trip: 34 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 4071 reviews
Overall
8.1
Boarding
8.1
Comfort
7.9
Crew
8.4
Entertainment
8.2
Food
7.7
SIN
HKG
Okay 5.0

I enjoyed the good check in service, and the excellent lounges. As always, the overall level of service on Cathay was good.

The utterly appalling seats on Cathay's old B777s are unacceptable for a premium airline. Non-reclining economy seats which are desperately uncomfortable for any flight of more than 1 hour, and completely unsuitable for an overnight flight. These planes desperately need a refit. Best avoided until this has been completed. The flight was overbooked, and the cabin crew seemed stressed and very busy. As a long term frequent flyer with CX, this was a very disappointing experience.

HKG
LAX
Mediocre 2.0

the person in front of me just laid down his seat for almost entire flight which made me to have no rooms people are switching seats without letting flight attendants to know. This is not fair for other customers

HKG
SFO
Mediocre 2.0

It was a long flight, and customer service not good.

BKK
HKG
Good 7.6

Great crew, very professional. Food good. Easy boarding. Staff at check in were great fixing the problem of my seating.

I had booked my seats online, however nothing was in place when checking in.

HKG
MNL
Excellent 10.0

None

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Denver International to Ulan Bator Buyant Uhaa Flight Information

Flights Arrive in Ulan Bator Buyant Uhaa
Flights Depart from Denver International
Flight Price $1075
Distance 6077 miles
Airlines Air China, Korean Air, Turkish Airlines, Cathay Pacific
*
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The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.