Transport Mode: Air Travel
- Companies: Delta Airlines, American Airlines, Southwest Airlines
 - Duration: Approximately 6-8 hours (including layovers)
 - Distance: 1,350 miles (around 2,173 kilometers)
 - Costs: Approximately 2,000 PLN (depends on booking time and class)
 - Roads/Routes: Not applicable (air travel)
 
Pro Tip: Book your tickets at least 2-3 months in advance and consider using flight aggregator websites to compare prices for better deals.
For your journey from Sidney, MT to San Diego, CA, I recommend taking a flight from Sidney to a larger hub airport (like Denver International Airport) and then connecting to a direct flight to San Diego International Airport. Ensure to check the layover times and choose airlines that best fit your schedule.
Transport Mode: Road Travel
- Companies: Personal vehicle, rental car (Enterprise, Hertz)
 - Duration: Approximately 20-24 hours (non-stop driving)
 - Distance: 1,400 miles (around 2,253 kilometers)
 - Costs: Approximately 600 PLN for gas (assuming average fuel price and mpg)
 - Roads/Routes: I-90 W, I-15 S
 
Pro Tip: Make sure to download offline maps ahead of time, as certain rural areas may have limited internet connectivity.
If you choose to drive, take the I-90 W then connect to I-15 S. Plan your stops in advance and consider taking breaks at interesting landmarks along the way to make your journey enjoyable and less fatigue-prone.