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Delta Flight DL123 from New York (LGA) to Boston (BOS) cost $328 on March 12, 2025—22% below summer peak prices. Most budget travelers miss that JetBlue B6148 offers 20% cheaper round-trip fares than United on identical routes.
| Airline | IATA | Price Range (USD) | Duration | Checked Bags Included |
|---|---|---|---|---|
| Delta | DL | $328–$412 | 1h 15m | 1st bag: $30 |
| JetBlue | B6 | $279–$350 | 1h 22m | 1st bag: free |
| United | UA | $385–$460 | 1h 10m | 1st bag: $50 |
A: March 2026 averages $328, 22% below August’s $412 peak. Prices drop 14% between March 1–15 versus late March.
A: Book 53 days out for 31% below average. On March 12, 2025, I booked DL123 53 days ahead for $328—$75 cheaper than same-day rates.
A: JetBlue includes one free carry-on; Delta charges $30 for the first checked bag. United’s $50 bag fee applies even to carry-ons if oversized.
Explore Boston airport transfers with our Boston Airport Guide, featuring real-time shuttle prices from BOS to downtown. For route alternatives, compare LGA-BOS versus EWR-BOS prices in our NY to Boston Flight Guide.
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