$509 Find Cheap Flights from Boise to Singapore - Compare and Save

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Price, demand and travel trends for Boise to Singapore flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

What are the cheapest fares from Boise to Singapore right now?

The cheapest fare from Boise to Singapore in the last week was $1,131 round-trip, to Singapore Changi (SIN).

Which airport in Singapore is the cheapest to fly to from Boise?

All flights from Boise to Singapore arrive at Singapore Changi (SIN). On average, round-trip fares are around $1,261.

What's the cheapest time of day to fly from Boise to Singapore?

Data from the past 12 months shows it's cheapest to fly to Singapore during the evening, but the difference compared with the morning, the most expensive time to fly, is minimal, just 0%.

Key details for Boise to Singapore flights

Cheapest flight

$509
The most popular month to fly with an average 44% increase in travelers.
One-way flight from Boise to Singapore

Your Boise to Singapore flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • Is now a good time to book a flight from Boise to Singapore?

    Yes. Fares from Boise to Singapore are low right now. As a rule of thumb, a round-trip under $1,179 (cheaper than most fares this year) is a good deal, so if you spot one at or below that, it's a good time to book.

  • How much should I budget for a flight from Boise to Singapore?

    Over the past 12 months, round-trip fares from Boise to Singapore have ranged from $1,179 to $1,345.

  • What are the main airports serving Singapore?

    Flights to Singapore use two main airports, Singapore Changi (SIN) and Singapore Seletar (XSP).

  • What airlines fly nonstop from Boise to Singapore?

    Based on the flight schedule for the next 3 months, no airline regularly operates nonstop flights from Boise to Singapore. However, United Airlines offers a one-stop option.

  • Which cabin classes are available on flights from Boise to Singapore?

    On flights from Boise to Singapore you can book Economy Class, Premium Economy Class or Business Class.

  • What are some popular landmarks in Singapore?

    KAYAK travelers' favorite landmarks in Singapore include:

    • Marina Bay Sands
    • Sentosa
    • Singapore National Stadium
    • Universal Studios Singapore

Your guide to booking Boise to Singapore flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your travel dates are flexible, book your trip for February when flights are typically cheapest and avoid March when prices are at their highest.
  • Flying on Thursday is usually the cheapest. Flights on Wednesday cost about 27% more on average, so being flexible with your travel dates could help you save.

Reviews of the top airline flying from Boise to Singapore

 
Need help choosing which airline to fly with from Boise to Singapore? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.3
United AirlinesOverall score based on 10388 reviews
7.7Boarding
8.1Crew
7.3Comfort
7.1Entertainment
6.7Food
Airline reviews

Flight was so congested it was disgusting. Hals of the hostesses clearly seemed to be racist. no sanitation maintained in the restrooms.

2.0 MediocreAnonymous, Oct 2026
Read more United Airlines reviews

Flight was so congested it was disgusting. Hals of the hostesses clearly seemed to be racist. no sanitation maintained in the restrooms.

It was perfect! United Airlines staff was extremely caring, super friendly and professional

Read the fine print. This was my flight home. I booked my flight for the quickest way home. Had a carry-on and a personal item. Same as my outbound flight. Apparently I needed to pre-pay extra for my carry-on. When I checked in, I was told that I had to check it. I said I’ll pay for it, and was told that this wasn’t an option anymore. They said I still had to pay $50 to check my carry-on. I told them I’ll pay whatever to just carry it in as intended. I was not allowed, so eventually I paid $50 to check my carry-on under a plane that was half full, with overhead compartments that were even less full. My white carry-on suitcase was practically destroyed getting from Idaho falls to Denver to Orange County. The low price air fair was a bait and switch. Got me to the gate, made me pay extra, then didn’t even allow me to pay for a carry on. Not to mention that I paid the $8 for WiFi that didn’t work. All to get my suitcase destroyed. I don’t think I’m going to even keep my Untied mileage plus membership and card. Apparently, membership does not have its privileges for this one.

Delayed - weather wasn't bad at either end. Also sat on tarmac in ORD.

During landing. 2 crew members passed 3 times by my lane and didn't notice that people in front of us had their site to the furthermore reclined... That was uncomfortable and could have been dangerous.

UA28 was good service and meals. UA is upgraded, I would like to book for next flight by UA Thanks Liao

United Airlines was fantastic, however, UnderPricer was a nightmare. I got to the airport 4 hours before my flight. We are moving to New Zealand so had quite a bit of baggage (16 checked items) and so wanted to have plenty of time to get everything taken care of properly. When I went to check in they (United) could only find a ticket for me. The 5 tickets for my children were never officially ticketed. I called Underpricer and they told me it was United's fault and United told me that Underpricer just needs to reissue the tickets, but they refused to. I asked the Underpricer agent to transfer me to his supervisor as I was not getting the help I needed. He told me the supervisor was busy but that he would call me back in 30 minutes. 30 minutes came and went with no phone call. After an hour I called Underpricer back but they would not let me talk to the person I had talked to before, just told me that he was talking with the supervisor and technical support. I called again an hour later, was told the same thing. I tried again later, with only about 30 minutes until my flight was scheduled to leave (meaning I had been at the airport for more than 3 hours with my 5 children trying to get ticketed and board the flight). Also, my husband had moved to New Zealand 3 months prior, I haven't seen him in 3 months, my children hadn't seen their dad in 3 months, we were all extremely eager to get on that flight and get to New Zealand. The situation with the tickets did not get resolved until after it was too late to check our luggage and board our flight. We were devastated. My 11 year old son was in tears at not being able to be on his way to see his dad. Thankfully we were rebooked for the next evening, but that night it felt devastating. We'd been at the airport for 4 hours waiting. My in-laws waited with me and then helped me reload all our baggage and took us home to stay with them for the night. On the newly booked flights we could not sit together - my children were spread throughout the plane. So, even though I had paid extra to select our seats after buying my seats from Underpricer only two of us were able to sit together (thankful that my 11 year old wasn't all by himself, but not happy that my 14 & 16 year old daughters were seated by strangers). I really feel that Underpricer should refund me what I paid for the seating ($120 USD). It was a very frustrating situation and I plan on never using Kayak or Underpricer ever again.

Food is very bad and entertint not too many options ... flight attendet service is not good

For a 17 hour flight, they kept us well feed. The music selection could be better curated. The entertainment selection was about what is expected. The crew was fantastic.

I forgot to pre order gluten free on a 16 hour flight and I am pretty sure the crew raided their own lunches and first class to keep me fed.

More options for your flight from Boise to Singapore

Complete your trip to Singapore with a hotel stay or car rental