Tip: How to Find United MileagePlus Award Partner Confirmation Numbers
As experienced travelers know, choosing your seat in advance can make a big difference in the flying experience. For some cabins — like Finnair's business class and Aer Lingus' business class — it can mean the difference between having a row to yourself or having to share the same space with another passenger.
However, in order to select a seat, you usually need to work with the operating carrier to request it. A key requirement for retrieving your flight with the operating carrier is having the confirmation number from that airline, which usually differs from the confirmation number of the airline through which you booked the flight.
I ran into this issue when trying to check-in for my recent Austrian business-class flight. While I was able to get a quick response from a United Twitter agent, a couple of commenters pointed out two easier ways of retrieving this confirmation number with the carrier. Turns out, this information is hiding in plain sight. Here's how to find it:
United Website
1. Log into your United account.
2. Scroll down to Current Reservations and select View on the flight you're interested in.

3. Under the United Confirmation Number banner, there's a smaller line that'll say, "This reservation contains partner flights" with a link to "View additional confirmation numbers." Click on this link to reveal the partner confirmation numbers.

United App
1. Open the United app and select My Reservations from the top menu.
2. Select the booking you want to retrieve the confirmation for.

3. Scroll to the bottom and select "Additional information" to reveal the additional confirmation numbers.

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| 2X miles | 2 miles per dollar on every purchase |
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Earn 200K miles when you spend $30K in the first 3 months, and an additional 200K miles when you spend $150K in the first 6 monthsLIMITED-TIME OFFER: Earn up to 400K bonus milesAnnual Fee
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The Capital One Venture X Business Card has all the Capital One Venture X Rewards Credit Card has to offer and more. It offers an incredible welcome bonus and requires an equally impressive spend to qualify. In addition, the card comes with premium travel perks like annual travel credit. (Partner offer)Pros
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- In addition, the card comes with many premium travel perks such as an annual $300 credit for bookings through Capital One Business Travel.
- Business owners are also able to add employee cards for free.
Cons
- The card requires significant spending to earn the welcome offer.
- Another drawback is that the annual travel credit can only be used on bookings made through Capital One Business Travel.
- LIMITED-TIME OFFER: Earn up to 400K bonus miles: 200K miles when you spend $30K in the first 3 months, and an additional 200k miles when you spend $150k in the first 6 months
- Earn unlimited 2X miles on every purchase, everywhere—with no limits or category restrictions
- Earn 10X miles on hotels and rental cars and 5X miles on flights and vacation rentals booked through Capital One Business Travel
- With no preset spending limit, enjoy big purchasing power that adapts so you can spend more and earn more rewards
- Empower your teams to make business purchases while earning rewards on their transactions, with free employee and virtual cards. Plus, automatically sync your transaction data with your accounting software and pay your vendors with ease
- Redeem your miles on flights, hotels and more. Plus, transfer your miles to any of the 15+ travel loyalty programs
- Every year, you'll get 10,000 bonus miles after your account anniversary date. Plus, receive an annual $300 credit for bookings made through Capital One Business Travel
- Receive up to a $120 credit for Global Entry or TSA PreCheck®. Enjoy access to 1,300+ airport lounges worldwide, including Capital One Lounge locations and Priority Pass™ lounges, after enrollment
- Enjoy a $100 experience credit and other premium benefits with every hotel and vacation rental booked from the Premier Collection
- This is a pay-in-full card, so your balance is due in full every month

