Cheap flights from Ulaanbaatar to Singapore from $358 UBN → SIN
Chinggis Khaan International Airport (UBN) → Changi International Airport (SIN)
The cheapest return found recently is $882 with Air China, 1 Aug 2027 – 12 Aug 2027, found 3 days ago. The cheapest one-way found recently is $358 with Shanghai Airlines, 19 Nov, found 5 days ago.
- Cheapest one-way found recently
- $358, found 5 days ago
- Cheapest return found recently
- $882, 1 Aug 2027 to 12 Aug 2027
- Usual return price
- $666 to $704
- Cheapest month to fly
- December 2026, return fares from $572 found in the last 7 days
Return
The cheapest return fare on each of 5 departure dates is usually $666 to $704.
Cheapest return found recently
$882
1 Aug 2027 – 12 Aug 2027 · Air China
Chinggis Khaan International Airport (UBN) → Changi International Airport (SIN)
Leaves 4:30 p.m. · Return leaves 11:25 p.m. · 25 h 45 min of travel, both ways together
out 1 stop, back 1 stop
found 3 days ago
Cheapest nonstop return
None seen yet.
Found recently, and the cheapest we hold
$882 1 Aug 2027 – 12 Aug 2027found 3 days agoSee prices for these dates
$572 9 Dec – 14 Decfound 7 days agoSee prices for these dates
What have prices looked like?
Over 47 days, 24 Sept to 11 Nov, the cheapest return we saw each day was $572 to $754.
At $882, the cheapest return found recently is above that range.
Those were the prices on those days, not today's.
Is this a good return price?
Compared with the cheapest return fare on each of 5 departure dates from 9 Dec to 1 Aug 2027, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.
Could nearby dates be cheaper?
We hold no other 11-night return fares leaving within 3 days of 1 Aug 2027 to compare.
Every date we hold
6 fares on 5 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 9 Dec – 14 Dec | $572 | Air China | Chinggis Khaan International Airport (UBN) → Changi International Airport (SIN) | out 1 stop, back 1 stop | found 7 days ago | See prices for these dates |
| 4 Mar 2027 – 8 Mar 2027 | $704 | Spring Airlines | Chinggis Khaan International Airport (UBN) → Changi International Airport (SIN) | out 1 stop, back 1 stop | found 4 days ago | See prices for these dates |
| 7 Mar 2027 – 12 Mar 2027 | $666 | MIAT Mongolian Airlines | Chinggis Khaan International Airport (UBN) → Changi International Airport (SIN) | out 1 stop, back 1 stop | found 4 days ago | See prices for these dates |
| 19 Mar 2027 – 26 Mar 2027 | $667 | MIAT Mongolian Airlines | Chinggis Khaan International Airport (UBN) → Changi International Airport (SIN) | out 2 stops, back 1 stop | found 7 days ago | See prices for these dates |
| 1 Aug 2027 – 12 Aug 2027 | $882 | Air China | Chinggis Khaan International Airport (UBN) → Changi International Airport (SIN) | out 1 stop, back 1 stop | found 3 days ago | See prices for these dates |
Which month looks cheapest?
December 2026 is the cheapest month — from $572.
Airlines on the cheapest dates: Air China, MIAT Mongolian Airlines, Spring Airlines.
One-way
The cheapest one-way fare on each of 3 departure dates is usually $328 to $347.
Cheapest one-way found recently
$358
19 Nov · Shanghai Airlines
Chinggis Khaan International Airport (UBN) → Changi International Airport (SIN)
Leaves 1:00 p.m. · 13 h 25 min trip
stops unknown
found 5 days ago
Cheapest nonstop one-way
None seen yet.
Found recently, and the cheapest we hold
$358 19 Novfound 5 days agoOpen this trip
$319 14 Feb 2027found 7 days agoOpen this trip
What have prices looked like?
Over 22 days, 24 Sept to 11 Nov, the cheapest one-way we saw each day was $319 to $387.
22 days is a short history, so treat this range as an early guide.
Those were the prices on those days, not today's.
Is this a good one-way price?
Compared with the cheapest one-way fare on each of 3 departure dates from 19 Nov to 7 Mar 2027, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.
Could nearby dates be cheaper?
We hold no other one-way fares leaving within 3 days of 19 Nov to compare.
Every date we hold
3 fares on 3 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 19 Nov | $358 | Shanghai Airlines | Chinggis Khaan International Airport (UBN) → Changi International Airport (SIN) | stops unknown | found 5 days ago | Open this trip |
| 14 Feb 2027 | $319 | MIAT Mongolian Airlines | Chinggis Khaan International Airport (UBN) → Changi International Airport (SIN) | 2 stops | found 7 days ago | Open this trip |
| 7 Mar 2027 | $336 | MIAT Mongolian Airlines | Chinggis Khaan International Airport (UBN) → Changi International Airport (SIN) | 1 stop | found 7 days ago | Open this trip |
Which month looks cheapest?
February 2027 is the cheapest month — from $319.
Airlines on the cheapest dates: MIAT Mongolian Airlines, Shanghai Airlines.
Premium cabin fares from Ulaanbaatar to Singapore
We hold no premium economy, business or first-class fares for this route: we collect them for the busiest routes, and this one is not among them yet.
Today's prices for 1 Aug 2027 – 12 Aug 2027 in another cabin: Premium economy · Business · First
Today's prices for 19 Nov in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Ulaanbaatar to Singapore?
Return
The cheapest fares were 0 to 6 days before departure.
From the cheapest return each day between 24 Sept and 11 Nov (47 days), grouped by how many days ahead the flight left; one adult in economy.
Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.
Prices reflect recent searches — current fares may differ.
See these ranges as a table
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 0–6 days | $649 | $591 | Cheapest seen | 15 |
| 7–13 days | $649 | $591 | +0% | 8 |
| 14–29 days | $700 | $693 | +8% | 8 |
| 60–89 days | $765 | $696 | +18% | 35 |
| 90–179 days | $677 | $666 | +4% | 29 |
| 180+ days | $755 | $715 | +16% | 18 |
One-way
Not enough history yet: in 22 days of one-way prices, 24 Sept to 11 Nov, fewer than 3 booking ranges had prices on 7 days or more.
Live price for these dates
The cheapest return found recently is for 1 Aug 2027 – 12 Aug 2027. A live search on this page shows what those dates cost now, for one adult in economy.
Questions about this trip
How much is a return flight from Ulaanbaatar to Singapore?
The cheapest return found recently is $882 with Air China, 1 Aug 2027 to 12 Aug 2027, found 3 days ago. The cheapest return we hold, of any age, is $572 with Air China, 9 Dec to 14 Dec, found 7 days ago. The cheapest return fare on each of 5 departure dates is usually $666 to $704.
How much is a one-way flight from Ulaanbaatar to Singapore?
The cheapest one-way found recently is $358 with Shanghai Airlines, 19 Nov, found 5 days ago. The cheapest one-way we hold, of any age, is $319 with MIAT Mongolian Airlines, 14 Feb 2027, found 7 days ago. The cheapest one-way fare on each of 3 departure dates is usually $328 to $347.
What is the cheapest month to fly from Ulaanbaatar to Singapore?
December 2026 is the cheapest month for a return, from $572, 9 Dec to 14 Dec, found 7 days ago. February 2027 is the cheapest month for a one-way, from $319, 14 Feb 2027, found 7 days ago.
How far ahead should I book a flight from Ulaanbaatar to Singapore?
In 47 days of prices between 24 Sept and 11 Nov, return fares were cheapest 0 to 6 days before departure.
Which airlines have the cheapest flights from Ulaanbaatar to Singapore?
Between 9 Dec and 1 Aug 2027, Air China has the cheapest return on 2 of the 5 departure dates we hold, MIAT Mongolian Airlines on 2 and Spring Airlines on 1. Between 19 Nov and 7 Mar 2027, MIAT Mongolian Airlines has the cheapest one-way on 2 of the 3 departure dates we hold, and Shanghai Airlines on 1.
Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work