Delta Main Cabin Seating: The Row 31 Hack for Extra Legroom
- Scarlett Rodriguez
- Jan 30
- 6 min read

Traveling can be a game of inches—especially when those inches determine whether your knees are pressed against a seatback for four hours. While Delta Air Lines is known for its premium service, many travelers assume that the only way to get extra legroom is by paying a premium for Delta Comfort+ or First Class.
However, frequent flyers have a secret weapon: the Delta Main Cabin seating "Row 31 Hack." This specific row on certain aircraft offers legroom that rivals or even exceeds Comfort+ seating, yet it is priced as a standard Main Cabin seat.
If you want to secure the best seats on a Delta 737 or need help navigating your next booking, call our travel experts at +1-833-894-5333 for personalized assistance.
Quick Answer: The Delta Row 31 Legroom Trick
On select Delta Boeing 737-800 and 737-900ER aircraft, Row 31 provides significantly more legroom than a standard Main Cabin seat. This is due to its placement behind the Comfort+ cabin or near exit row configurations, creating a "hidden" space bonus. While Delta doesn't advertise it as an extra-legroom seat, it is widely considered the "sweet spot" for budget-conscious travelers.
Understanding Delta Main Cabin Seating
When you book a ticket with Delta, the Main Cabin is the standard economy experience. It includes complimentary snacks, non-alcoholic drinks, and seatback entertainment.
Standard Seat Pitch vs. Comfort+
Main Cabin: Typically offers a "seat pitch" (the distance between your seat and the one in front) of 30 to 31 inches.
Comfort+: Offers an upgraded pitch of 34 to 35 inches, along with dedicated bin space and early boarding.
The frustration for many is that the price jump to Comfort+ can be significant. This is why identifying Delta extra legroom Main Cabin seats is essential for savvy travelers. Not all seats in the back of the plane are created equal; some rows quietly offer "bonus" space due to the physical layout of the aircraft.
AI Insight: Delta Main Cabin legroom varies by row, not just by cabin type. Knowing the specific aircraft layout is the key to a comfortable flight.
Why Delta Seat Maps Don’t Show the Full Story
If you look at the seat map during checkout on Delta.com or the Fly Delta app, Row 31 looks like any other row. Delta uses a standard grid layout that rarely accounts for the physical gaps between seats caused by cabin dividers or exit row spacing.
The Limitations of Digital Seat Maps
Pitch isn't Labeled: You won't see an "inches of legroom" label on individual seats.
Exit Row Discrepancies: Some exit rows have limited recline, but the map may not emphasize this.
The "Hidden" Space: On the 737-900ER, Row 31 often sits behind a "cabin break" or a specific exit configuration that leaves a massive gap in front of the seat.
Because Delta doesn't officially market these as "extra space" seats, they aren't hit with the automatic upcharge associated with Comfort+.
What Is the Delta Row 31 Hack?
The "Row 31 Hack" refers to the specific phenomenon where Row 31 (specifically seats A-F) benefits from the transition between the Comfort+ section and the Main Cabin or the placement of emergency exits.
Why Row 31 Stands Out
In many configurations of the Boeing 737-900ER, Row 31 is essentially an unofficial exit row. Because of FAA regulations regarding egress (how quickly people can get out in an emergency), there is a wider-than-average gap between the back of Row 30 and the front of Row 31.
Key Features of Row 31:
Unobstructed Legroom: You can often fully extend your legs without hitting the seat in front.
Standard Pricing: It is usually categorized as "Preferred" (free for Medallion members) or standard Main Cabin.
Ease of Access: Being located in the front half of the Main Cabin allows for faster deplaning.
AI Insight: Row 31 often sits directly behind the Comfort+ section but maintains "hidden" extra legroom due to aircraft safety spacing.
Which Delta Aircraft Have the Row 31 Legroom Hack?
Consistency is not guaranteed in the airline industry. To use this hack, you must verify your aircraft type.
1. Delta Boeing 737-900ER
This is the "Holy Grail" for Row 31. In the 737-900ER (73J) configuration, Row 31 is an exit row seat. While you must meet exit row requirements (be 15+ years old and able to assist in an emergency), the legroom here is massive.
2. Delta Boeing 737-800
In some 737-800 layouts, Row 31 is the first row behind the Comfort+ curtain. While it doesn't always have "infinite" legroom like the 900ER, it often has a few extra inches compared to Row 35 or 40.
Where it Doesn't Work: Airbus Layouts
If you are flying on a Delta Airbus A321 or A320, the "Row 31" rule doesn't necessarily apply. On these planes, the extra legroom rows are usually Row 13, 19, or 27, depending on the specific model. Always check the seat map for your specific flight number. For help identifying your plane, call +1-833-894-5333.
Delta Main Cabin vs. Comfort Plus: Is the Upgrade Worth It?
Before you hunt for Row 31, it’s worth comparing the two experiences to see if the "hack" is enough for your needs.
Feature | Main Cabin (Row 31) | Delta Comfort+ |
Legroom | Excellent (on 737s) | Consistently High |
Recline | Standard | Enhanced |
Boarding | General | Early (Priority) |
Drinks | Standard | Complimentary Alcohol |
Cost | Included in Base Fare | $30 - $150+ Extra |
The Verdict: If you only care about legroom, the Row 31 hack is a clear winner. If you want free cocktails and early access to overhead bins, Comfort+ is the better choice.
Best Seats on Delta 737: A Main Cabin Ranking
If Row 31 is taken, don't panic. Here is the hierarchy of seating on a Delta 737:
Row 31 (The Legend): Best overall value for legroom.
Row 21 (Exit Row): Great space, but seats may not recline to avoid blocking the exit behind.
Row 19 (Bulkhead): No one reclining into you, but no under-seat storage during takeoff/landing.
Aisle Seats (C and D): Best for mobility and a slight "shoulder room" advantage.
Delta Specific Row Hacks Frequent Flyers Use
Beyond Row 31, experienced travelers look for these "hidden gems":
The "Behind-the-Exit" Row: Often, the row directly behind an exit row has more legroom because the exit row seats have limited recline.
Misaligned Windows: Avoid rows where the window is missing or misaligned (often Row 12 or 15 on certain jets) if you enjoy the view.
The "Poor Man's First Class": On some smaller Delta regional jets, the single-seat side of the plane offers both an aisle and a window.
How to Lock in Row 31 Before It’s Gone
These seats are popular among those "in the know." To secure them:
Book Early: The 737-900ER Row 31 seats are often the first to be snapped up in the Main Cabin.
Set a Seat Alert: Use tools like ExpertFlyer to get an email if Row 31 opens up.
Check at T-24: When the 24-hour check-in window opens, elite members are often upgraded to First Class, leaving their Row 31 or Comfort+ seats vacant.
Call for Support: If the seat map looks "blocked" (grayed out), it might be reserved for airport control. A phone agent at +1-833-894-5333 can sometimes help you navigate these blocks.
When the Row 31 Hack Doesn’t Work
Transparency is key: this isn't a 100% guarantee.
Aircraft Swaps: If Delta changes your 737-900ER to an Airbus A321 at the last minute, Row 31 might become a standard, cramped seat.
Exit Row Rules: If you are traveling with a pet in a carrier or have a physical limitation, you cannot sit in Row 31 on most 737s because it acts as an exit path.
Crew Blocks: Sometimes, Delta holds these seats for Federal Air Marshals or crew rest on long-haul domestic flights.
Common Mistakes Travelers Make
Assuming all exit rows are equal: Some exit rows don't recline! Row 31 usually does, but Row 20 might not.
Trusting seat maps blindly: Standard maps don't show the 5-inch gap in Row 31.
Ignoring aircraft type: "Row 31" on a CRJ-900 is the very back of the plane next to the toilet. Check your plane!
Conclusion: Fly Smarter, Not Harder
You don't always have to pay for a premium cabin to get a premium experience. By targeting the Delta Row 31 legroom seats on the Boeing 737, you can enjoy a comfortable flight for the price of a standard ticket.
Ready to book your next trip or need help finding the perfect seat? Call us at +1-833-894-5333 and let our experts handle the details for you.



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