Search  for anything...

Airplane Seat Belt Extender, Seatbelt Extender Adjustable 7-31" for all Airplane include Southwest Airlines 737-800(Two in one)

  • Based on 609 reviews
Condition: New
Checking for product changes

Buy Now, Pay Later


As low as $4 / mo
  • – 4-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Free shipping on this product
This item's return window has been extended for the holiday season: Returnable until Jan 31, 2025

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: Only 5 left in stock, order soon!
Fulfilled by Amazon

Arrives Sunday, Dec 29
Order within 6 hours and 46 minutes
Available payment plans shown during checkout

Features

  • Unique MatchThis airplane seat belt extender is only compatible with southwest planes (737-800/737MAX8). Unique airline design just for your extraordinary comfort.
  • Adjustable LengthThe adjustable length of the seatbelt extender is 7-41 inches, suitable for obese people, pregnant women, and who need to increase the length of their belt, to ensure maximum comfort during the flight.
  • Easy Install and PortableThe installation of the seat belt extender is as simple as you wear a belt usually. The seat belt extension folds compactly to the size of a fist for easy portability.
  • Quality MaterialThe airplane seat belt extender lock is made of 45# steel, sturdy and wear-resistant. The Webbing made of high precision stitched polyester material can withstand tensile strengths up to 3800 lbs.
  • Satisfaction GuaranteeIncluding 1* Southwest Seatbelt Extender, 1* Portable Travel Bag. If you have any questions about the product, please feel free to contact us, We will try our best to make you have a better shopping experience.

Manufacturer: ‎WaiNynyda


Brand: ‎WaiNynyda


Model: ‎WaiNynyda


Item Weight: ‎10.2 ounces


Package Dimensions: ‎4.09 x 2.6 x 1.97 inches


Country of Origin: ‎China


Item model number: ‎WN23AS0014


Exterior: ‎Machined


Manufacturer Part Number: ‎WaiNynyda


Date First Available: September 4, 2023


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Dec 29

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Seatbelt extender great and worked well
Color: Extender 2 in 1
I liked that the extender works as described. No negatives.
Reviewed in the United States on August 20, 2024 by LAB-1

  • Extra personal comfort and safety
We got this before taking an international flight. I absolutely hate the inconsistency of the length of some seat belts on some of the aircraft. And for a longer flight, I don't want to compromise comfort for safety. Why can't we have both? I used the extender on the first shorter, domestic flight. I loved the comfort and it worked well. On the longer international flight, my seat belt was fine but my son said that he drew "the short straw." I passed him the extender and he said he loved it. We were on 3 different airlines and it worked well with all of them. We'll be getting a couple more so that everyone has their own.....just in case. ... show more
Reviewed in the United States on June 24, 2022 by C

  • Not compatible with SW 737-700
Color: Extender 2 in 1
Just took a trip on Southwest and I can confirm this belt is not compatible with the buckle on the 737-700 I was on. Buckle would insert into the latch, but wouldn't lock into place. It was a gamble, but gave it a go, anyway. AA is where I have the most trouble. They seem to have issue with larger folks flying on their aircraft by providing inadequate length safety belts. And I'm not that oversized. I am just big enough the belt doesn't quite reach on the CRJ or EMB planes (2 by 2 seating). I'll update this review once I've had a chance to try it out. Still giving this 5 stars. Build quality is good and appears like it will work when I get on a compatible aircraft. ... show more
Reviewed in the United States on December 21, 2023 by Ron

  • Doesn't work with Frontier belts...
I used both Spirit and Frontier. I had no problems on my Spirit flight. On Frontier, I noticed that the plane's male piece was designed differently, therefore did not fit in the belt extender. It would have been a 5 star product if that didn't happen.
Reviewed in the United States on February 17, 2023 by Julez A.

  • Worked great!
Saved me from awkwardly struggling to fit into the regular seat belt or asking for an airline extender. Did have a crew member on one flight (out of eight since purchasing) discreetly tell me I needed to use theirs for safety/liability reasons, but otherwise it hasn't been an issue. I clip it to the shorted part of the seat's belt before sitting so that I have two longer pieces to work with and tighten up once I'm sitting. ... show more
Reviewed in the United States on August 31, 2023 by Suzanne

  • Travel belt
Color: Extender 2 in 1
Perfect to take along while traveling and avoid embarrassment of asking for one. Use discreetly.
Reviewed in the United States on June 29, 2024 by deborah torrey

  • Great extender for larger waists
Color: Extender 2 in 1
I purchased this extender after experiencing a connecting flight where I had to really suck it in to latch the seat belt. I had never experienced a flight where the seat belt didn't fit and I was embarrassed to have to try so hard to make it fit, especially when I had just exited a flight where I had zero issues. Before my return flight, I chose to purchase this for my carry on, so glad I did. I do wish the size adjustment was easier, but it was fine. ... show more
Reviewed in the United States on January 6, 2024 by SnugglyBugs

  • PEACE OF MIND
I bought this because I knew I had gained weight since my last flight and I am so glad I did. I have never needed an extender until this trip. 1 of my 4 flights it was not needed at all, 1 I chose to use because seatbelt barley clasped and the other 2 no amount of sucking in or wiggling around would have done the trick. I was so thankful that I didn't have to ask the flight attendant for one in front of my kids, husband or nearby passengers. My husband didn't even notice me use it (granted I was in the middle of our 2 kids). My only suggestion was I wish it were blue, like the airlines. I don't believe flight attendants noticed, but if they did, they didn't mind. We flew American Airlines if that helps any others. ... show more
Reviewed in the United States on January 15, 2023 by Katie

Can't find a product?

Find it on Amazon first, then paste the link below.